Examine source code of Kaito self-cest

{
  "theme": {
    "images": {
      "theme_frame": "firefoxtop.png"
    },
    "colors": {
      "frame": "#2b3e75",
      "tab_background_text": "#44a9db"
    }
  },
  "version": "2.0",
  "name": "Kaito self-cest",
  "manifest_version": 2,
  "description": "redesign of kaito magnet persona"
}