Examine source code of DualView Translator

{
  "manifest_version": 3,
  "name": "DualView Translator",
  "version": "1.8.0",
  "default_locale": "en",
  "description": "__MSG_extDescription__",
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "nativeMessaging"
  ],
  "host_permissions": [
    "https://translate.googleapis.com/*",
    "https://api-free.deepl.com/*",
    "https://api.deepl.com/*",
    "https://api.anthropic.com/*",
    "https://generativelanguage.googleapis.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "DualView Translator",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "https://disqus.com/embed/comments/*"
      ],
      "js": [
        "i18n.js",
        "content-core.js",
        "content-selection.js",
        "content-page.js",
        "content-bar.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end",
      "all_frames": false
    },
    {
      "matches": [
        "https://disqus.com/embed/comments/*"
      ],
      "js": [
        "i18n.js",
        "content-core.js",
        "content-page.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dualview-translator@ext",
      "strict_min_version": "112.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "commands": {
    "toggle-page-translate": {
      "suggested_key": {
        "default": "Ctrl+Shift+T",
        "mac": "Command+Shift+T"
      },
      "description": "__MSG_cmdTogglePageTranslateDescription__"
    },
    "translate-selection": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y",
        "mac": "Command+Shift+Y"
      },
      "description": "__MSG_cmdTranslateSelectionDescription__"
    },
    "enter-region-mode": {
      "suggested_key": {
        "default": "Ctrl+Shift+R",
        "mac": "Command+Shift+R"
      },
      "description": "__MSG_cmdEnterRegionModeDescription__"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}