Examine source code of Rainbow Squares

{
  "theme": {
    "images": {
      "theme_frame": "R.S.jpg"
    },
    "colors": {
      "frame": "#f7f4f4",
      "tab_background_text": "#f5f0ed"
    }
  },
  "version": "2.0",
  "name": "Rainbow Squares",
  "manifest_version": 2,
  "description": "idk... i was really bored. it didnt really turn out that good. i like pie!! :D\n-coolshanni"
}