@@ -0,0 +1,531 @@
+package de.bitbrain.braingdx.util;%0A%0Aimport com.badlogic.gdx.graphics.Color;%0A%0A/**%0A * Color utilities%0A */%0Apublic final class Colors %7B%0A%0A   public static Color lighten(Color color, float factor) %7B%0A      Color result = color.cpy();%0A      result.r *= factor;%0A      result.g *= factor;%0A      result.b *= factor;%0A      return result;%0A   %7D%0A%0A   public static Color darken(Color color, float factor) %7B%0A      Color result = color.cpy();%0A      result.r /= factor;%0A      result.g /= factor;%0A      result.b /= factor;%0A      return result;%0A   %7D%0A%7D%0A

add color manipulation utility