Examine source code of SFP Tools

{
  "manifest_version": 3,
  "name": "SFP Tools",
  "version": "1.3",
  "description": "Adds custom quick actions to better navigate through configuration of SFP (Smart Form Platform) devoleped by Gappex s.r.o.",
  "icons": {
    "32": "icons/sfp-32.png",
    "48": "icons/sfp-48.png"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background_scripts/background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "action": {
    "default_icon": "icons/sfp-32.png",
    "default_title": "SFP Tools",
    "default_popup": "popup/main.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "sfptools@danielsasek.cz",
      "strict_min_version": "42.0"
    }
  }
}