Examine source code of Thunderstorm Landscape

{
  "name": "Thunderstorm Landscape",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Thunderstorm Landscape.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(240, 218, 168, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "toolbar_field": "rgba(3, 3, 3, 0)",
      "toolbar_field_text": "rgba(235, 205, 54, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{77296d98-cb69-4b94-b2e6-01ef308a65b1}"
    }
  }
}