Examine source code of QRier

{
  "action": {
    "default_icon": "icons/logo.svg",
    "default_title": "QRier",
    "theme_icons": [
      {
        "light": "icons/logo-light.svg",
        "dark": "icons/logo.svg",
        "size": 32
      }
    ]
  },
  "icons": {
    "48": "icons/logo.svg"
  },
  "description": "Adds a button and context menus to generate QR codes",
  "author": "MrOtherGuy",
  "manifest_version": 3,
  "name": "QRier",
  "options_ui": {
    "page": "options/options.html"
  },
  "permissions": [
    "activeTab",
    "menus",
    "storage"
  ],
  "optional_permissions": [
    "scripting"
  ],
  "omnibox": {
    "keyword": "qrier"
  },
  "version": "2.1",
  "background": {
    "scripts": [
      "background-script.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "incontent/inContent.html"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "QRier@example.com",
      "strict_min_version": "115.0"
    },
    "gecko_android": {
      "id": "QRier@example.com",
      "strict_min_version": "120.0"
    }
  }
}