improve perf (#2154)

Author: lidord-wix

src/components/colorSwatch/index.tsx

@@ -137,6 +137,7 @@ class ColorSwatch extends PureComponent<Props> {
     const {isSelected} = this.state;
     const Container = onPress ? TouchableOpacity : View;
     const tintColor = this.getTintColor(color);
+    const accessibilityInfo = Constants.accessibility.isScreenReaderEnabled && this.getAccessibilityInfo();
 
     return (
       <Container
@@ -148,7 +149,7 @@ class ColorSwatch extends PureComponent<Props> {
         onPress={this.onPress}
         style={[this.styles.container, style]}
         onLayout={this.onLayout}
-        {...this.getAccessibilityInfo()}
+        {...accessibilityInfo}
       >
         {Colors.isTransparent(color) && (
           <Image source={transparentImage} style={this.styles.transparentImage} resizeMode={'cover'}/>

src/style/colorNameMap.ts

@@ -1,5 +1,6 @@
 // adopted from: ntc js (Name that Color JavaScript)
 // http://chir.ag/projects/ntc
+// TODO: change array to object to improve performance
 
 const colorNameMap = [
   ['000000', 'Black'],