Examine source code of Clover - Calendar

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "1.2.0",
  "default_locale": "en",
  "description": "__MSG_appDescription__",
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "notifications",
    "activeTab",
    "alarms"
  ],
  "action": {
    "default_title": "__MSG_appName__",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-38.png",
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "service_worker": "background/service-worker.js"
  },
  "options_ui": {
    "page": "settings.html",
    "open_in_tab": true
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'none'; base-uri 'self'; style-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com; font-src 'self' https://cdnjs.cloudflare.com; img-src 'self' data:; media-src 'self' data:; connect-src 'self' https:"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "_locales/**/*",
        "src/wasm/calendar_utils_bg.wasm",
        "src/wasm/calendar_utils.js",
        "src/wasm/wasm_loader.js",
        "src/wasm/ical_loader.js",
        "src/wasm/ical_export_bg.wasm",
        "src/wasm/ical_export.js",
        "src/assets/*.ogg",
        "module.js",
        "src/modules/*.js",
        "src/components/*.js",
        "src/components/QuickAddModal.js",
        "src/utils/storage.js",
        "src/utils/i18n.js",
        "src/utils/holidays.js"
      ],
      "matches": [
        "https://*/*",
        "http://*/*",
        "file:///*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@clover.app",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}