Examine source code of AutoPinTab

{
  "description": "Automatically pins new tabs based on their URL.",
  "manifest_version": 2,
  "name": "AutoPinTab",
  "version": "1.3.5.1",
  "homepage_url": "https://coolsoft.altervista.org/autopintab",
  "applications": {
    "gecko": {
      "id": "autopintab__coolsoft.ita@gmail.com",
      "strict_min_version": "115.0"
    }
  },
  "permissions": [
    "contextMenus",
    "downloads",
    "storage",
    "tabs"
  ],
  "icons": {
    "32": "icons/icon-32.png",
    "128": "icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "js/config.js",
      "js/pattern.js",
      "background/background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true,
    "chrome_style": true
  }
}