Examine source code of Evil Masquerade

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ababab"
    }
  },
  "version": "2.0",
  "name": "Evil Masquerade",
  "manifest_version": 2,
  "description": "® This is The Ultimate Browser - a powertool manufactured in a dungeon close to Hell. To be used with precaution."
}