Examine source code of Tropical Sunrise

{
  "name": "Tropical Sunrise",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "2233.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(33, 61, 204, 0.14)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(30, 176, 209, 0.45)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(156, 50, 209, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ca3566d0-801c-4497-9595-53e69773e4a2}"
    }
  }
}