Examine source code of Edge Translate

{
  "background": {
    "persistent": true,
    "scripts": [
      "./background/background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icon/icon16.png",
      "48": "icon/icon48.png",
      "128": "icon/icon128.png"
    },
    "default_popup": "./popup/popup.html"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Q"
      }
    },
    "cancel_page_translate": {
      "description": "__MSG_CancelPageTranslate__"
    },
    "change_language_setting": {
      "description": "__MSG_ChangeLanguageSetting__"
    },
    "change_mutual_translate": {
      "description": "__MSG_MutualTranslation__"
    },
    "close_result_frame": {
      "description": "__MSG_CloseResultFrame__",
      "suggested_key": {
        "default": "Alt+C"
      }
    },
    "copy_result": {
      "description": "__MSG_CopyResult__"
    },
    "exchange_source_target_lang": {
      "description": "__MSG_ExchangeSourceAndTargetLanguage__",
      "suggested_key": {
        "default": "Alt+S"
      }
    },
    "fix_result_frame": {
      "description": "__MSG_FixResultFrame__",
      "suggested_key": {
        "default": "Alt+X"
      }
    },
    "pronounce_original": {
      "description": "__MSG_PronounceOriginal__"
    },
    "pronounce_selected": {
      "description": "__MSG_PronounceSelected__"
    },
    "pronounce_translated": {
      "description": "__MSG_PronounceTranslated__"
    },
    "toggle_page_translate_banner": {
      "description": "__MSG_TogglePageTranslateBanner__"
    },
    "translate_page": {
      "description": "__MSG_TranslatePage__"
    },
    "translate_selected": {
      "description": "__MSG_TranslateSelectedText__"
    }
  },
  "content_scripts": [
    {
      "js": [
        "./content/display/display.js",
        "./content/pdf.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    },
    {
      "all_frames": true,
      "css": [
        "./content/select/select.css"
      ],
      "js": [
        "./content/select/select.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "./content/banner_controller.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    },
    {
      "all_frames": true,
      "js": [
        "./content/deepl_injector.js"
      ],
      "matches": [
        "*://*.deepl.com/*"
      ]
    }
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval' chrome-extension://hfjbmagddngcpeloejdejnfgbamkjaeg/ chrome-extension://aibcglbfblnogfjhbcmmpobjhnomhcdo/; object-src 'self'",
  "default_locale": "en",
  "description": "__MSG_Description__",
  "homepage_url": "https://github.com/EdgeTranslate/EdgeTranslate/wiki",
  "icons": {
    "16": "icon/icon16.png",
    "48": "icon/icon48.png",
    "128": "icon/icon128.png"
  },
  "manifest_version": 2,
  "minimum_chrome_version": "55",
  "name": "__MSG_AppName__",
  "options_ui": {
    "chrome_style": false,
    "open_in_tab": true,
    "page": "./options/options.html"
  },
  "permissions": [
    "notifications",
    "contextMenus",
    "storage",
    "cookies",
    "tabs",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "version": "2.4.0",
  "web_accessible_resources": [
    "**/*.css",
    "**/*.png",
    "youdao/*",
    "google/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{77feef59-7c88-4a5d-ab55-db3304641f39}"
    }
  }
}