Examine source code of BMW M3 large

{
  "theme": {
    "images": {
      "theme_frame": "persona_M3_large.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "BMW M3 large",
  "manifest_version": 2,
  "description": "BMW M3 Header Image for three or more toolbars.\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/ce8e133e162bdc3098fe1df435ae090877949b5566096c5d9276ecbbb3cdc9ba/http%3A//www.bmw.de/de/de/newvehicles/mseries/m3sedan/2007/overview.html\" rel=\"nofollow\">http://www.bmw.de/de/de/newvehicles/mseries/m3sedan/2007/overview.html</a>"
}