Examine source code of Auto Tab Group

{
  "manifest_version": 3,
  "name": "Auto Tab Group",
  "version": "3.2.0",
  "description": "Automatically group tabs by opener, auto-collapse inactive groups, custom rules, saved groups, and more.",
  "permissions": [
    "tabs",
    "tabGroups",
    "storage",
    "contextMenus",
    "alarms"
  ],
  "commands": {
    "toggle-group": {
      "suggested_key": {
        "default": "Alt+G"
      },
      "description": "Group or ungroup the current tab"
    }
  },
  "background": {
    "scripts": [
      "defaults.js",
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Auto Tab Group"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "tab-grouper@local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}