Examine source code of Gotify Messenger Plus

{
  "manifest_version": 2,
  "name": "Gotify Messenger",
  "version": "0.2",
  "description": "Easily send messages to your Gotify server for real-time notifications and alerts. 🔔📩",
  "icons": {
    "64": "/assets/images/icon.png"
  },
  "background": {
    "scripts": [
      "/vendor/jquery/jquery-3.5.0.js",
      "background.js"
    ]
  },
  "options_ui": {
    "page": "settings/settings.html",
    "browser_style": false
  },
  "permissions": [
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_icon": "/assets/images/icon.png",
    "default_title": "Gotify Fox",
    "default_popup": "popup/popup.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ad5b9001-077a-4d0e-bfcb-a0ff8bace582}"
    }
  }
}