Examine source code of slankers kretek

{
  "theme": {
    "images": {
      "theme_frame": "cats.jpg"
    },
    "colors": {
      "frame": "#a68888",
      "tab_background_text": "#d65a5a"
    }
  },
  "version": "2.0",
  "name": "slankers kretek",
  "manifest_version": 2,
  "description": "slank"
}