Examine source code of Blue Entertainment

{
  "theme": {
    "images": {
      "theme_frame": "BlueEntertainmentPersonaHeaderPNG.png"
    },
    "colors": {
      "frame": "#0084ff",
      "tab_background_text": "#00bbff"
    }
  },
  "version": "2.0",
  "name": "Blue Entertainment",
  "manifest_version": 2,
  "description": "This is the Blue Entertainment Persona for Mozilla Firefox.\n\nCreated by Kalisimo for Blue Entertainment"
}