Examine source code of Proxy CAPES

{
  "manifest_version": 3,
  "name": "Proxy CAPES",
  "version": "1.0.3",
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "Proxy CAPES",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "options_ui": {
    "page": "src/settings/settings.html",
    "open_in_tab": true
  },
  "commands": {
    "open-via-capes": {
      "suggested_key": {
        "default": "Alt+Shift+C"
      },
      "description": "__MSG_commandOpenViaCapes__"
    }
  },
  "background": {
    "scripts": [
      "src/background/index.js"
    ],
    "type": "module"
  },
  "permissions": [
    "storage",
    "tabs",
    "contextMenus"
  ],
  "host_permissions": [
    "*://*.periodicos.capes.gov.br/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{019f2f06-485b-7809-a587-a8e79ede9461}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}