Examine source code of Folding The Colors

{
  "theme": {
    "images": {
      "theme_frame": "colorsheader.png"
    },
    "colors": {
      "frame": "#bfbdbd",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Folding The Colors",
  "manifest_version": 2,
  "description": "This is part of my personal project which is called Folding The Colors. Have fun with colors."
}