Examine source code of Bubble Creative

{
  "theme": {
    "images": {
      "theme_frame": "MozillaFirefox.jpg"
    },
    "colors": {
      "frame": "#104145",
      "tab_background_text": "#104145"
    }
  },
  "version": "2.0",
  "name": "Bubble Creative",
  "manifest_version": 2,
  "description": "Nothing"
}