Examine source code of Summarize On Select

{
  "name": "Summarize On Select",
  "description": "Выдели текст, нажми Alt+N — краткая сводка откроется в отдельном окне.",
  "version": "1.4.0",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "admin@belagum.ru",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "https://api.openai.com/*"
  ],
  "background": {
    "scripts": [
      "src/background/background.js"
    ]
  },
  "options_page": "src/options/options.html",
  "icons": {
    "16": "src/icons/icon-16.png",
    "32": "src/icons/icon-32.png",
    "48": "src/icons/icon-48.png",
    "64": "src/icons/icon-64.png",
    "96": "src/icons/icon-96.png",
    "128": "src/icons/icon-128.png"
  },
  "action": {
    "default_title": "Summarize On Select",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "src/icons/icon-16.png",
      "32": "src/icons/icon-32.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "summarize-selection": {
      "suggested_key": {
        "default": "Alt+N"
      },
      "description": "Суммировать текущее выделение"
    }
  }
}