Examine source code of Quick Proxy

{
  "manifest_version": 3,
  "name": "Quick Proxy",
  "version": "0.1.1",
  "author": "Andrey Upadyshev",
  "description": "Quick switch between proxy configurations",
  "icons": {
    "48": "icons/app.svg",
    "96": "icons/app.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "quickproxy@oliora.name",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "browserSettings",
    "storage",
    "proxy"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": "icons/app.svg",
    "theme_icons": [
      {
        "dark": "icons/app.svg",
        "light": "icons/app-dark.svg",
        "size": 16
      },
      {
        "dark": "icons/app.svg",
        "light": "icons/app-dark.svg",
        "size": 32
      }
    ]
  },
  "options_ui": {
    "page": "html/options.html"
  }
}