Examine source code of computer blue

{
  "theme": {
    "images": {
      "theme_frame": "firefoxpersona1.jpg"
    },
    "colors": {
      "frame": "#cfcfcf",
      "tab_background_text": "#06003b"
    }
  },
  "version": "2.0",
  "name": "computer blue",
  "manifest_version": 2,
  "description": "simple blue persona, goes well with any blue theme"
}