Examine source code of Sky Over Sea

{
  "name": "Sky Over Sea",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "BeautfyofNatureH1.jpg"
    },
    "colors": {
      "frame": "rgba(61, 108, 219, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(61, 103, 219, 0.07)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(6, 78, 122, 0.1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ee41e50a-e942-495c-81da-eed52dc55207}"
    }
  }
}