Examine source code of RAR Opener

{
  "manifest_version": 2,
  "name": "RAR Opener",
  "description": "Use RAR Opener to open, download and extract your .rar files and .zip archives with RAR support, just like winRar or…",
  "default_locale": "en",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": {
      "16": "assets/logo/16x16.png",
      "48": "assets/logo/48x48.png",
      "64": "assets/logo/64x64.png",
      "96": "assets/logo/96x96.png",
      "128": "assets/logo/128x128.png"
    }
  },
  "content_security_policy": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'",
  "icons": {
    "16": "assets/logo/16x16.png",
    "48": "assets/logo/48x48.png",
    "128": "assets/logo/128x128.png"
  },
  "web_accessible_resources": [
    "pages/Content/content.styles.css",
    "assets/logo/128x128.png",
    "assets/logo/48x48.png"
  ],
  "permissions": [
    "contextMenus",
    "downloads",
    "storage"
  ],
  "version": "1.0.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2cbc3d28-4c32-4119-bc74-4662fea59495}"
    }
  }
}