Examine source code of crimson eye

{
  "theme": {
    "images": {
      "theme_frame": "test1.png"
    },
    "colors": {
      "frame": "#910000",
      "tab_background_text": "#5e5d5d"
    }
  },
  "version": "2.0",
  "name": "crimson eye",
  "manifest_version": 2,
  "description": "first persona.. just playing around with ideas "
}