Examine source code of Placebo - Cold Light 2

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#313131",
      "tab_background_text": "#c2c2c2"
    }
  },
  "version": "2.0",
  "name": "Placebo - Cold Light 2",
  "manifest_version": 2,
  "description": "Theme designed to go with the <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/179c9af906a700a1ad4722f39b4c0659ea7cced3e24d04d387b879badb0f096d/http%3A//fav.me/d346dad\"> visual style for windows 7, Cold Light 2 variant.</a>"
}