Examine source code of Firefox Carbon Light

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Firefox Carbon Light",
  "manifest_version": 2,
  "description": "This is a modification of this theme: <a rel=\"nofollow\" href=\"https://addons.mozilla.org/en-US/firefox/addon/firefox-carbon/\">Firefox Carbon</a> by <a rel=\"nofollow\" href=\"https://addons.mozilla.org/en-US/firefox/user/Reitazorc/\">Reitazorc</a> @ <a rel=\"nofollow\" href=\"/\">RZ-Studio.com</a>"
}