Examine source code of Oriental Twist

{
  "name": "Oriental Twist",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "H.jpg"
    },
    "colors": {
      "frame": "rgba(130, 40, 26, 1)",
      "tab_background_text": "rgba(255, 247, 247, 1)",
      "toolbar": "rgba(133, 44, 27, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(133, 44, 27, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e19e5d81-9f48-46b0-a15f-16cd1005a095}"
    }
  }
}