Examine source code of Site Cache Cleaner

{
  "manifest_version": 2,
  "name": "Site Cache Cleaner",
  "version": "1.0.1",
  "description": "Clear cache, storage, and cookies for specific websites with one click.",
  "author": "SiteCacheCleaner",
  "homepage_url": "https://github.com/site-cache-cleaner",
  "permissions": [
    "storage",
    "cookies",
    "browsingData",
    "activeTab",
    "tabs",
    "contextMenus",
    "notifications",
    "http://*/",
    "https://*/"
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Site Cache Cleaner"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background/service-worker.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "site-cache-cleaner@amr.design",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "commands": {
    "clear-current-site": {
      "suggested_key": {
        "default": "Ctrl+Shift+X",
        "mac": "Command+Shift+X"
      },
      "description": "Clear cache for current site"
    }
  }
}