Examine source code of Green

{
  "name": "Green",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "abstract geo header.jpg"
    },
    "colors": {
      "frame": "rgba(50, 56, 51, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(81, 224, 86, 1)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(235, 240, 237, 1)",
      "toolbar_field_text": "rgba(26, 153, 75, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0eeb1d71-7dcc-4781-ac26-ce54414e5b7c}"
    }
  }
}