Examine source code of QR Code Scanner & Generator

{
  "manifest_version" : 2 ,
  "name" : "QR Code Scanner & Generator",
  "description" : "QR Code Scanner & Generator",
  "version" : "1.0.2",
  "permissions" : [
    "activeTab" ,
    "contextMenus" ,
    "storage" ,
    "clipboardWrite" ,
    "clipboardRead" 
  ],
  "icons" : {
    "16" : "icons/qrcode16.png",
    "48" : "icons/qrcode48.png",
    "128" : "icons/qrcode128.png"
  },
  "options_ui" : {
    "page": "index.html" ,
    "open_in_tab": true
  },
  "background" : {
    "scripts" : [
      "background.js" 
    ]
  },
  "browser_action" : {
    "default_icon" : "icons/qrcode48.png",
    "default_title" : "QR Code Scanner & Generator",
    "default_popup" : "index.html"
  },
  "sidebar_action": {
    "default_title" : "QR Code Scanner & Generator",
    "default_panel": "index.html"
  },
  "content_scripts" : [
    {
      "matches" : [
        "<all_urls>" 
      ],
      "js" : [
        "content.js" 
      ]
    }
  ],
  "content_security_policy" : "script-src 'self' 'wasm-unsafe-eval'; worker-src 'self' blob:",
  "browser_specific_settings": {
    "gecko": {
      "id": "{75ac8f80-dc2b-4218-b419-ba7d431dce0b}"
    }
  }
}