Examine source code of Shine Blue

{
  "theme": {
    "images": {
      "theme_frame": "Top.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Shine Blue",
  "manifest_version": 2,
  "description": "Blue Bliss is a Persona made to increase the fun in your web browser. This light blue gradient looks great with FireFox and makes your browser shine!"
}