Examine source code of Aperiment Lite

{
  "manifest_version": 2,
  "name": "Aperiment Lite",
  "author": "Adam Charvát",
  "developer": {
    "name": "Adam Charvát",
    "url": "https://www.skulaurun.eu"
  },
  "version": "1.2",
  "permissions": [
    "storage",
    "*://www.skulaurun.eu/*"
  ],
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "icon.svg",
    "default_title": "Aper Lite",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.curseforge.com/minecraft/mc-mods*",
        "*://www.curseforge.com/minecraft/search*"
      ],
      "js": [
        "request.js",
        "curseforge.js"
      ],
      "css": [
        "curseforge.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d542b071-ce3f-4c55-9a89-74ef2fc6ede7}"
    }
  }
}