Examine source code of VS Code Web

{
  "manifest_version" : 2 ,
  "name" : "VS Code Web",
  "version" : "1.0",
  "description" : "An extension to open a GitHub repo in VS Code Web",
  "permissions" : [
    "activeTab" 
  ],
  "icons" : {
    "48" : "icon.png"
  },
  "browser_action" : {
    "default_popup" : "popup.html",
    "default_icon" : "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{35b26d2b-df11-4243-84ea-daef3ee00901}"
    }
  }
}