Examine source code of Hot Air Balloons

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxHotAirBalloonsPersonaHeader.jpg"
    },
    "colors": {
      "frame": "#eb0c0c",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Hot Air Balloons",
  "manifest_version": 2,
  "description": "Hot Air Balloons by NInaBella"
}