Examine source code of IMPERIA Firefox Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#cccccc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "IMPERIA Firefox Theme",
  "manifest_version": 2,
  "description": "IMPERIA: Game Portal\n<a href=\"https://outgoing.prod.mozaws.net/v1/98b78db8b3165c3edb62698fd9eeef956511fbe6d25df2f46a5838c9bef41327/http%3A//www.imperiaportal.ru\" rel=\"nofollow\">www.imperiaportal.ru</a>"
}