Examine source code of creeper 2

{
  "theme": {
    "images": {
      "theme_frame": "k2.jpg"
    },
    "colors": {
      "frame": "#f01111",
      "tab_background_text": "#f2df30"
    }
  },
  "version": "2.0",
  "name": "creeper 2",
  "manifest_version": 2
}