Examine source code of Editable QR Generator

{
  "manifest_version": 2,
  "name": "Editable QR Generator",
  "version": "1.0.2",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/xyx-is/Editable-QR-Generator",
  "icons": {
    "16": "icons/icon16.png",
    "24": "icons/icon24.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "96": "icons/icon96.png"
  },
  "default_locale": "en",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "24": "icons/icon24.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "64": "icons/icon64.png",
      "96": "icons/icon96.png"
    },
    "default_title": "Editable QR Generator",
    "default_popup": "popup.html",
    "browser_style": true
  }
}