Examine source code of Translator - translation of selected text

{
  "manifest_version": 3,
  "name": "__MSG_app_name__",
  "description": "__MSG_app_description__",
  "version": "2.7.1",
  "icons": {
    "16": "icons/16.png",
    "24": "icons/24.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "homepage_url": "https://github.com/chergav/translater",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "translater@chergav",
      "strict_min_version": "128.0"
    }
  },
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_title": "__MSG_app_name__",
    "default_popup": "popup.html"
  },
  "commands": {
    "open-translator": {
      "suggested_key": {
        "default": "Ctrl+Shift+U",
        "mac": "Command+Shift+U"
      },
      "description": "__MSG_commands_open_translator__"
    }
  },
  "permissions": [
    "storage",
    "contextMenus",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "type": "module",
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "content-scripts/content.js"
      ],
      "match_origin_as_fallback": true
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "/content-scripts/esm/*"
      ]
    }
  ]
}