Examine source code of Github Pull Request Counter

{
  "manifest_version" : 3 ,
  "author": "Renuo AG",
  "name" : "Github Pull Request Counter",
  "description" : "A browser extension to remove mental load when working with pull requests.",
  "version" : "2.0.4",
  "action" : {
    "default_popup" : "popup.html"
  },
  "options_ui" : {
    "page": "options.html" ,
    "open_in_tab": true
  },
  "permissions" : [
    "alarms" ,
    "storage" 
  ],
  "host_permissions" : [
    "https://api.github.com/*" ,
    "https://github.com/*" 
  ],
  "background" : {
    "scripts" : [
      "js/background.js" 
    ],
    "type" : "module" 
  },
  "icons" : {
    "16" : "icons/icon16.png",
    "32" : "icons/icon32.png",
    "48" : "icons/icon48.png",
    "128" : "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "github-pull-request-counter-firefox@renuo.ch"
    }
  }
}