Examine source code of Firefox tech Inverted

{
  "theme": {
    "images": {
      "theme_frame": "Firefoxheader.jpg"
    },
    "colors": {
      "frame": "#ff7700",
      "tab_background_text": "#00ddff"
    }
  },
  "version": "2.0",
  "name": "Firefox tech Inverted",
  "manifest_version": 2,
  "description": "Simple Firefox persona, inverted colors. :P"
}