Examine source code of Blue Fantasy

{
  "theme": {
    "images": {
      "theme_frame": "4a.jpg"
    },
    "colors": {
      "frame": "#a84a4a",
      "tab_background_text": "#3b2121"
    }
  },
  "version": "2.0",
  "name": "Blue Fantasy",
  "manifest_version": 2,
  "description": "A pleasure for your eyes"
}