Examine source code of Scrollinger

{
  "manifest_version" : 3 ,
  "name" : "Scrollinger",
  "version" : "1.0.3",
  "description" : "Auto-scroll web pages with smooth natural or interval scrolling, domain-level rules, and an interactive in-site floating widget.",
  "permissions" : [
    "storage" ,
    "activeTab" ,
    "scripting" 
  ],
  "host_permissions" : [
    "http://*/*" ,
    "https://*/*" 
  ],
  "background" : {
    "service_worker" : "background/background.js" ,
    "scripts" : [
      "background/background.js" 
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "scrollinger@devranbir.github.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "content_scripts" : [
    {
      "matches" : [
        "http://*/*" ,
        "https://*/*" 
      ],
      "css" : [
        "content/content.css" 
      ],
      "js" : [
        "content/content.js" 
      ],
      "all_frames" : true ,
      "run_at" : "document_idle" 
    }
  ],
  "action" : {
    "default_popup" : "popup/popup.html",
    "default_title" : "Scrollinger",
    "default_icon" : {
      "16" : "icons/icon16.png",
      "48" : "icons/icon48.png",
      "128" : "icons/icon128.png"
    }
  },
  "icons" : {
    "16" : "icons/icon16.png",
    "48" : "icons/icon48.png",
    "128" : "icons/icon128.png"
  },
  "web_accessible_resources" : [
    {
      "resources" : [
        "content/content.css" 
      ],
      "matches" : [
        "http://*/*" ,
        "https://*/*" 
      ],
      "use_dynamic_url" : true 
    }
  ]
}