Examine source code of Easy QR Code

{
  "manifest_version" : 2 ,
  "name" : "__MSG_appName__" ,
  "description" : "__MSG_appDesc__" ,
  "version" : "1.1.0",
  "icons" : {
    "16" : "/icon-16x16.png",
    "32" : "/icon-32x32.png",
    "48" : "/icon-48x48.png",
    "96" : "/icon-96x96.png",
    "128" : "/icon-128x128.png",
    "256" : "/icon-256x256.png",
    "300" : "icon-300x300.png"
  },
  "default_locale" : "en" ,
  "browser_action" : {
    "default_title" : "Easy QR",
    "default_popup" : "popup.html"
  },
  "permissions" : [
    "tabs" ,
    "clipboardWrite" ,
    "contextMenus" ,
    "https://*/*" 
  ],
  "web_accessible_resources" : [
    "/icon-16x16.png",
    "/icon-32x32.png",
    "/icon-48x48.png",
    "/icon-96x96.png",
    "/icon-128x128.png",
    "/icon-256x256.png",
    "/modal.html"
  ],
  "background" : {
    "scripts" : [
      "background.js" 
    ]
  },
  "options_ui" : {
    "page": "options.html" ,
    "browser_style": true
  },
  "content_scripts" : [
    {
      "matches" : [
        "<all_urls>" 
      ],
      "js" : [
        "content-scripts/content.js" 
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2ec1e408-7fe4-4db0-9554-1c6f81053361}"
    }
  }
}