Examine source code of PacFox

{
  "theme": {
    "images": {
      "theme_frame": "pacfox.jpg"
    },
    "colors": {
      "frame": "#fa8b03",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "PacFox",
  "manifest_version": 2,
  "description": "Design inspired by classic game Pacman.\nPacfox eat iexplorer, chrome, opera, nestcape and safari browsers."
}