diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testChildrenMeasuredWithAutoMaxSize@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testChildrenMeasuredWithAutoMaxSize@3x.png
deleted file mode 100644
index 78fafd3f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testChildrenMeasuredWithAutoMaxSize@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_overflowChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_overflowChildren@3x.png
deleted file mode 100644
index 2023ff6a..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_overflowChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_underflowChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_underflowChildren@3x.png
deleted file mode 100644
index d34850d9..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_underflowChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_wrappedChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_wrappedChildren@3x.png
deleted file mode 100644
index e1f26129..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASAbsoluteLayoutSpecSnapshotTests/testSizingBehaviour_wrappedChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASBackgroundLayoutSpecSnapshotTests/testBackground@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASBackgroundLayoutSpecSnapshotTests/testBackground@3x.png
deleted file mode 100644
index e9bb3f40..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASBackgroundLayoutSpecSnapshotTests/testBackground@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testMinimumSizeRangeIsGivenToChildWhenNotCentering@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testMinimumSizeRangeIsGivenToChildWhenNotCentering@3x.png
deleted file mode 100644
index 3fb6feee..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testMinimumSizeRangeIsGivenToChildWhenNotCentering@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions@3x.png
deleted file mode 100644
index c2bf62b0..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringX@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringX@3x.png
deleted file mode 100644
index f1d9c2e5..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringX@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringXCenteringY@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringXCenteringY@3x.png
deleted file mode 100644
index 8093c897..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringXCenteringY@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringY@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringY@3x.png
deleted file mode 100644
index 7e824c20..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithOptions_CenteringY@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions@3x.png
deleted file mode 100644
index c2bf62b0..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumX@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumX@3x.png
deleted file mode 100644
index 6796058c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumX@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumXSizingMinimumY@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumXSizingMinimumY@3x.png
deleted file mode 100644
index d4a15f97..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumXSizingMinimumY@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumY@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumY@3x.png
deleted file mode 100644
index 802dbc7b..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASCenterLayoutSpecSnapshotTests/testWithSizingOptions_SizingMinimumY@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASImageNodeSnapshotTests/testRenderLogoSquare@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASImageNodeSnapshotTests/testRenderLogoSquare@3x.png
deleted file mode 100644
index 97119f1d..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASImageNodeSnapshotTests/testRenderLogoSquare@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-10-10@3x.png
deleted file mode 100644
index 94b36873..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-10-inf@3x.png
deleted file mode 100644
index ff3ea416..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-inf-10@3x.png
deleted file mode 100644
index 46394492..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-inf-inf@3x.png
deleted file mode 100644
index 4367dcf7..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-10-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-10-10@3x.png
deleted file mode 100644
index fe07dde6..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-10-inf@3x.png
deleted file mode 100644
index 639e6981..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-inf-10@3x.png
deleted file mode 100644
index b2c04111..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-inf-inf@3x.png
deleted file mode 100644
index 88d16405..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_10-inf-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-10-10@3x.png
deleted file mode 100644
index 89c5baf6..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-10-inf@3x.png
deleted file mode 100644
index 98a3f5fa..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-inf-10@3x.png
deleted file mode 100644
index 79c1dd46..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-inf-inf@3x.png
deleted file mode 100644
index 651468da..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-10-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-10-10@3x.png
deleted file mode 100644
index 98381144..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-10-inf@3x.png
deleted file mode 100644
index b71a6ad4..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-inf-10@3x.png
deleted file mode 100644
index 4d863686..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-inf-inf@3x.png
deleted file mode 100644
index f517f65d..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithFixedSize_inf-inf-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-0-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-0-0@3x.png
deleted file mode 100644
index 2dc72883..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-0-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-0-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-0-inf@3x.png
deleted file mode 100644
index 2e94b4f9..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-0-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-inf-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-inf-0@3x.png
deleted file mode 100644
index a23456fa..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-inf-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-inf-inf@3x.png
deleted file mode 100644
index 9def6b57..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-0-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-0-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-0-0@3x.png
deleted file mode 100644
index b4fbf19e..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-0-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-0-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-0-inf@3x.png
deleted file mode 100644
index 08d9a49f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-0-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-inf-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-inf-0@3x.png
deleted file mode 100644
index 9b5689fa..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-inf-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-inf-inf@3x.png
deleted file mode 100644
index 12024360..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_0-inf-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-0-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-0-0@3x.png
deleted file mode 100644
index 38a85d93..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-0-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-0-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-0-inf@3x.png
deleted file mode 100644
index abe3b383..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-0-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-inf-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-inf-0@3x.png
deleted file mode 100644
index 54b83399..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-inf-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-inf-inf@3x.png
deleted file mode 100644
index 7021cf7f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-0-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-0-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-0-0@3x.png
deleted file mode 100644
index 2c9f2fac..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-0-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-0-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-0-inf@3x.png
deleted file mode 100644
index 3fd9a4e1..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-0-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-inf-0@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-inf-0@3x.png
deleted file mode 100644
index f68b2bd9..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-inf-0@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-inf-inf@3x.png
deleted file mode 100644
index f517f65d..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithInfinityAndZeroInsetValue_inf-inf-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-10-10@3x.png
deleted file mode 100644
index 3004b336..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-10-inf@3x.png
deleted file mode 100644
index a645e3db..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-inf-10@3x.png
deleted file mode 100644
index 8a01a112..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-inf-inf@3x.png
deleted file mode 100644
index 4367dcf7..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-10-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-10-10@3x.png
deleted file mode 100644
index 558fd847..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-10-inf@3x.png
deleted file mode 100644
index 10f46657..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-inf-10@3x.png
deleted file mode 100644
index b2c04111..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-inf-inf@3x.png
deleted file mode 100644
index 88d16405..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_10-inf-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-10-10@3x.png
deleted file mode 100644
index eb9cf61a..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-10-inf@3x.png
deleted file mode 100644
index 98a3f5fa..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-inf-10@3x.png
deleted file mode 100644
index 232924d3..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-inf-inf@3x.png
deleted file mode 100644
index 651468da..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-10-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-10-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-10-10@3x.png
deleted file mode 100644
index 98381144..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-10-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-10-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-10-inf@3x.png
deleted file mode 100644
index b71a6ad4..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-10-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-inf-10@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-inf-10@3x.png
deleted file mode 100644
index 4d863686..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-inf-10@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-inf-inf@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-inf-inf@3x.png
deleted file mode 100644
index f517f65d..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASInsetLayoutSpecSnapshotTests/testInsetsWithVariableSize_inf-inf-inf-inf@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASOverlayLayoutSpecSnapshotTests/testOverlay@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASOverlayLayoutSpecSnapshotTests/testOverlay@3x.png
deleted file mode 100644
index e9bb3f40..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASOverlayLayoutSpecSnapshotTests/testOverlay@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_DoubleRatio@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_DoubleRatio@3x.png
deleted file mode 100644
index 099f811e..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_DoubleRatio@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_HalfRatio@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_HalfRatio@3x.png
deleted file mode 100644
index c8c49a58..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_HalfRatio@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_SevenTimesRatio@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_SevenTimesRatio@3x.png
deleted file mode 100644
index 5fd4b923..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_SevenTimesRatio@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_TenTimesRatioWithItemTooBig@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_TenTimesRatioWithItemTooBig@3x.png
deleted file mode 100644
index 01218893..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASRatioLayoutSpecSnapshotTests/testRatioLayout_TenTimesRatioWithItemTooBig@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignCenterWithFlexedMainDimension@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignCenterWithFlexedMainDimension@3x.png
deleted file mode 100644
index 4be05212..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignCenterWithFlexedMainDimension@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignCenterWithIndefiniteCrossDimension@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignCenterWithIndefiniteCrossDimension@3x.png
deleted file mode 100644
index 042dfd04..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignCenterWithIndefiniteCrossDimension@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedCenter@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedCenter@3x.png
deleted file mode 100644
index 70b2edb7..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedCenter@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedEnd@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedEnd@3x.png
deleted file mode 100644
index e7de0652..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedEnd@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStart@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStart@3x.png
deleted file mode 100644
index f37d2b44..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStart@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStretchNoChildExceedsMin@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStretchNoChildExceedsMin@3x.png
deleted file mode 100644
index 8c021540..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStretchNoChildExceedsMin@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStretchOneChildExceedsMin@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStretchOneChildExceedsMin@3x.png
deleted file mode 100644
index 092dc950..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testAlignedStretchOneChildExceedsMin@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingAfter@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingAfter@3x.png
deleted file mode 100644
index cf50ce8f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingAfter@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingBalancedOut@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingBalancedOut@3x.png
deleted file mode 100644
index d191cfbb..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingBalancedOut@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingBefore@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingBefore@3x.png
deleted file mode 100644
index 22ce210d..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildSpacing_spacingBefore@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildThatChangesCrossSizeWhenMainSizeIsFlexed@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildThatChangesCrossSizeWhenMainSizeIsFlexed@3x.png
deleted file mode 100644
index 45700fe8..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testChildThatChangesCrossSizeWhenMainSizeIsFlexed@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisSizeBehaviors_fixedHeight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisSizeBehaviors_fixedHeight@3x.png
deleted file mode 100644
index 98b75fc1..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisSizeBehaviors_fixedHeight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisSizeBehaviors_variableHeight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisSizeBehaviors_variableHeight@3x.png
deleted file mode 100644
index 12bfc630..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisSizeBehaviors_variableHeight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisStretchingOccursAfterStackAxisFlexing@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisStretchingOccursAfterStackAxisFlexing@3x.png
deleted file mode 100644
index 64727283..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testCrossAxisStretchingOccursAfterStackAxisFlexing@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testEmptyStack@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testEmptyStack@3x.png
deleted file mode 100644
index 54ac8f2b..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testEmptyStack@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisAppliedWhenFlexingItems_overflow@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisAppliedWhenFlexingItems_overflow@3x.png
deleted file mode 100644
index 4f9ffc33..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisAppliedWhenFlexingItems_overflow@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisAppliedWhenFlexingItems_underflow@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisAppliedWhenFlexingItems_underflow@3x.png
deleted file mode 100644
index dc22edc0..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisAppliedWhenFlexingItems_underflow@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisOverridesIntrinsicSizeForNonFlexingChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisOverridesIntrinsicSizeForNonFlexingChildren@3x.png
deleted file mode 100644
index 312623d2..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFixedFlexBasisOverridesIntrinsicSizeForNonFlexingChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFlexWithUnequalIntrinsicSizes_overflow@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFlexWithUnequalIntrinsicSizes_overflow@3x.png
deleted file mode 100644
index 1b82cbb9..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFlexWithUnequalIntrinsicSizes_overflow@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFlexWithUnequalIntrinsicSizes_underflow@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFlexWithUnequalIntrinsicSizes_underflow@3x.png
deleted file mode 100644
index c4db41e3..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFlexWithUnequalIntrinsicSizes_underflow@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFractionalFlexBasisResolvesAgainstParentSize@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFractionalFlexBasisResolvesAgainstParentSize@3x.png
deleted file mode 100644
index ca92a9bf..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testFractionalFlexBasisResolvesAgainstParentSize@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalBottomRight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalBottomRight@3x.png
deleted file mode 100644
index 19e98d65..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalBottomRight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalCenter@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalCenter@3x.png
deleted file mode 100644
index 36a78c6f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalCenter@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalTopLeft@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalTopLeft@3x.png
deleted file mode 100644
index ae763d07..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_horizontalTopLeft@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalBottomRight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalBottomRight@3x.png
deleted file mode 100644
index 8ba43f05..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalBottomRight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalCenter@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalCenter@3x.png
deleted file mode 100644
index 71df1cf2..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalCenter@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalTopLeft@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalTopLeft@3x.png
deleted file mode 100644
index 2d2de74c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testHorizontalAndVerticalAlignments_verticalTopLeft@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedCenterWithChildSpacing_variableHeight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedCenterWithChildSpacing_variableHeight@3x.png
deleted file mode 100644
index f6249587..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedCenterWithChildSpacing_variableHeight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceAroundWithOneChild@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceAroundWithOneChild@3x.png
deleted file mode 100644
index f97ca1ee..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceAroundWithOneChild@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceAroundWithRemainingSpace@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceAroundWithRemainingSpace@3x.png
deleted file mode 100644
index ea5c8e4d..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceAroundWithRemainingSpace@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceBetweenWithOneChild@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceBetweenWithOneChild@3x.png
deleted file mode 100644
index 34be81fa..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceBetweenWithOneChild@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceBetweenWithRemainingSpace@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceBetweenWithRemainingSpace@3x.png
deleted file mode 100644
index 1baf4bca..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testJustifiedSpaceBetweenWithRemainingSpace@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSize@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSize@3x.png
deleted file mode 100644
index 1cfcea8a..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSize@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAmongMixedChildrenChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAmongMixedChildrenChildren@3x.png
deleted file mode 100644
index 0ba9ef52..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAmongMixedChildrenChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAmongMixedChildrenWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAmongMixedChildrenWithArbitraryFloats@3x.png
deleted file mode 100644
index 0ba9ef52..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAmongMixedChildrenWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactor@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactor@3x.png
deleted file mode 100644
index 43440d20..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactor@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorAmongMixedChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorAmongMixedChildren@3x.png
deleted file mode 100644
index df6aaf64..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorAmongMixedChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorAmongMixedChildrenArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorAmongMixedChildrenArbitraryFloats@3x.png
deleted file mode 100644
index df6aaf64..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorAmongMixedChildrenArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorDoesNotShrinkToZero@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorDoesNotShrinkToZero@3x.png
deleted file mode 100644
index bd022030..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorDoesNotShrinkToZero@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorDoesNotShrinkToZeroWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorDoesNotShrinkToZeroWithArbitraryFloats@3x.png
deleted file mode 100644
index bd022030..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorDoesNotShrinkToZeroWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorWithArbitraryFloats@3x.png
deleted file mode 100644
index 43440d20..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeAndFlexFactorWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeWithArbitraryFloats@3x.png
deleted file mode 100644
index 1cfcea8a..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNegativeViolationIsDistributedBasedOnSizeWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNestedStackLayoutStretchDoesNotViolateWidth@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNestedStackLayoutStretchDoesNotViolateWidth@3x.png
deleted file mode 100644
index 571449ba..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testNestedStackLayoutStretchDoesNotViolateWidth@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviorsWhenAllFlexShrinkChildrenHaveBeenClampedToZeroButViolationStillExists@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviorsWhenAllFlexShrinkChildrenHaveBeenClampedToZeroButViolationStillExists@3x.png
deleted file mode 100644
index 3c6994df..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviorsWhenAllFlexShrinkChildrenHaveBeenClampedToZeroButViolationStillExists@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_flex@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_flex@3x.png
deleted file mode 100644
index c602d388..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_flex@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyCenter@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyCenter@3x.png
deleted file mode 100644
index 74b509f6..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyCenter@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyEnd@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyEnd@3x.png
deleted file mode 100644
index 1efcebc1..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyEnd@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyStart@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyStart@3x.png
deleted file mode 100644
index e6b5ab6e..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testOverflowBehaviors_justifyStart@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEqually@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEqually@3x.png
deleted file mode 100644
index 50fc7d1f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEqually@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyAmongMixedChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyAmongMixedChildren@3x.png
deleted file mode 100644
index a8d65774..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyAmongMixedChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyAmongMixedChildrenWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyAmongMixedChildrenWithArbitraryFloats@3x.png
deleted file mode 100644
index a8d65774..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyAmongMixedChildrenWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyWithArbitraryFloats@3x.png
deleted file mode 100644
index 50fc7d1f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedEquallyWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionally@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionally@3x.png
deleted file mode 100644
index 573dea9c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionally@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyAmongMixedChildren@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyAmongMixedChildren@3x.png
deleted file mode 100644
index cb8efb68..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyAmongMixedChildren@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyAmongMixedChildrenWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyAmongMixedChildrenWithArbitraryFloats@3x.png
deleted file mode 100644
index cb8efb68..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyAmongMixedChildrenWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyWithArbitraryFloats@3x.png
deleted file mode 100644
index 573dea9c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testPositiveViolationIsDistributedProportionallyWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testRemainingViolationIsAppliedProperlyToFirstFlexibleChild@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testRemainingViolationIsAppliedProperlyToFirstFlexibleChild@3x.png
deleted file mode 100644
index ee836d5c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testRemainingViolationIsAppliedProperlyToFirstFlexibleChild@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testRemainingViolationIsAppliedProperlyToFirstFlexibleChildWithArbitraryFloats@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testRemainingViolationIsAppliedProperlyToFirstFlexibleChildWithArbitraryFloats@3x.png
deleted file mode 100644
index ee836d5c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testRemainingViolationIsAppliedProperlyToFirstFlexibleChildWithArbitraryFloats@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testStackSpacingWithChildrenHavingNilObjects_variableHeight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testStackSpacingWithChildrenHavingNilObjects_variableHeight@3x.png
deleted file mode 100644
index bb44b6a4..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testStackSpacingWithChildrenHavingNilObjects_variableHeight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testStackSpacing_variableHeight@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testStackSpacing_variableHeight@3x.png
deleted file mode 100644
index b5d3bc5e..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testStackSpacing_variableHeight@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_flex@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_flex@3x.png
deleted file mode 100644
index f5479576..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_flex@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyCenter@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyCenter@3x.png
deleted file mode 100644
index f8908314..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyCenter@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyEnd@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyEnd@3x.png
deleted file mode 100644
index 7c06d73f..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyEnd@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifySpaceAround@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifySpaceAround@3x.png
deleted file mode 100644
index 457062ea..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifySpaceAround@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifySpaceBetween@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifySpaceBetween@3x.png
deleted file mode 100644
index eea9e51c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifySpaceBetween@3x.png and /dev/null differ
diff --git a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyStart@3x.png b/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyStart@3x.png
deleted file mode 100644
index 4a34478c..00000000
Binary files a/AsyncDisplayKitTests/ReferenceImages_64/ASStackLayoutSpecSnapshotTests/testUnderflowBehaviors_justifyStart@3x.png and /dev/null differ