Examine source code of Alberta Lake

{
  "name": "Alberta Lake",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "18577.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(179, 45, 45, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(56, 207, 192, 0.24)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(49, 240, 39, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{af0ac6cf-b94e-4623-833b-fe91be7beca7}"
    }
  }
}