Examine source code of Web App Maker

{
  "manifest_version": 3,
  "name": "As wep app",
  "description": "Open sites in a window without any browser decorations. For when you want the Progressive Web App (PWA) or Site Specific Browser (SSB) experience.",
  "version": "20260303",
  "author": "feraxhp",
  "license": "MIT",
  "permissions": [
    "tabs",
    "webNavigation",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@wam.feraxhp",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "commands": {
    "preserve": {
      "description": "Opens the tab in preserve mode",
      "suggested_key": {
        "default": "Alt+P"
      }
    },
    "as_copy": {
      "description": "Opens a clone of the tab",
      "suggested_key": {
        "default": "Alt+K"
      }
    }
  }
}