Examine source code of Auto Tab Groups

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "3.5.1",
  "icons": {
    "16": "icon/16.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "default_locale": "en",
  "author": "Nitzan Papini",
  "permissions": [
    "tabs",
    "storage",
    "tabGroups",
    "contextMenus"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{442789cf-4ff6-4a85-bf5b-53aa3282f1a2}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "sidebar_action": {
    "default_panel": "sidebar.html",
    "default_icon": {
      "16": "icon/16.png",
      "48": "icon/48.png",
      "128": "icon/128.png"
    },
    "default_title": "__MSG_extensionName__"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Auto Tab Groups",
    "default_popup": "popup.html"
  }
}