Update README.md

README.md

@@ -5,10 +5,8 @@
 [![Twitter: @aslanyanhaik](https://img.shields.io/badge/Contact-Twitter-blue.svg?style=flat)](https://twitter.com/aslanyanhaik)
 
 
-
-RoundCode is a Facebook messenger like custom QR code with lots of customization. 
-
-In addition to encoder the RoundCode also includes convenient camera scanner and decoder.
+RoundCode is custom circular QR code with lots of customization. 
+Similar to Facebook messenger and Apple's App Clip Codes the RoundCode includes convenient camera scanner and decoder.
 
 <h3 align="center">
 <img src="appearance.png" alt="Different styles of RoundCode for iOS"/>
@@ -81,14 +79,14 @@ You can also decode a UIImage like this
 
 ```swift
 let coder = RCCoder()
-  do {
-    messageLabel.text = try coder.decode(UIImage(named: code)!)
-  } catch {
-    //handle errors
-  }
+do {
+  messageLabel.text = try coder.decode(UIImage(named: code)!)
+} catch {
+  //handle errors
+}
 ```
 
-### Appearance
+## Appearance
 
 You can change the appearance like this
 
@@ -100,10 +98,14 @@ image.size = 300
 image.gradientType = .linear(angle: CGFloat.pi)
 image.tintColors = [.red, .black]
 ```
+If image is on dark background you should change scanning mode to `darkBackground`
 
-⚠️ When choosing colors or transparent background you should keep in mind that decoder will detect the code on light background with dark colors ⚠️
+```swift
+let coder = RCCoder()
+coder.scanningMode = .darkBackground
+```
 
-### Advanced
+## Advanced coding configuration
 
 You can provide custom coding configuration in order to encode long text by reducing number of characters
 

Sources/Internal/RCImageDecoder.swift

@@ -74,9 +74,8 @@ extension RCImageDecoder {
     return points
   }
 
-  
   private func scanPixelPattern(for mode: ScanMode, data: PixelContainer) -> [PixelPattern] {
-    var lastPattern = PixelPattern.init(bit: pixelThreshold.contains((data[0, 0])) ? RCBit.one : RCBit.zero, x: 0, y: 0, count: 0)
+    var lastPattern = PixelPattern(bit: pixelThreshold.contains((data[0, 0])) ? RCBit.one : RCBit.zero, x: 0, y: 0, count: 0)
     var pixelPatterns = [lastPattern]
     var count = 0
     let maxSize = size * size