Examine source code of Gloomy Storm

{
  "name": "Storm",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled.png"
    },
    "colors": {
      "frame": "rgba(31, 31, 31, 1)",
      "tab_background_text": "rgba(109, 109, 109, 1)",
      "toolbar": "rgba(31, 31, 31, 1)",
      "bookmark_text": "rgba(240, 240, 240, 1)",
      "toolbar_field": "rgba(27, 27, 27, 1)",
      "toolbar_field_text": "rgba(240, 240, 240, 1)",
      "tab_line": "rgba(83, 83, 83, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4ad7d132-04fd-485f-9ef6-9dd1d7264b3c}"
    }
  }
}