Examine source code of Namibia, Desert, Dry

{
  "name": "Namibia, Desert, Dry",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Namibia, Desert, Dry.jpg"
    },
    "colors": {
      "frame": "rgba(143, 169, 230, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(235, 144, 144, 1)",
      "toolbar_field": "rgba(240, 120, 120, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0c20b4c7-9d98-4437-8504-d820e2b4c349}"
    }
  }
}