Examine source code of Beach, Ocean, Sea

{
  "name": "Pastel colors theme",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "aa (2).jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(74, 213, 255, 1)",
      "toolbar_field": "rgba(13, 255, 251, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{922f6f70-b6b4-4533-a1f1-4a24c7788f99}"
    }
  }
}