Examine source code of TrueAim adblock

{
  "manifest_version": 3,
  "name": "TrueAim adblock",
  "version": "1.0.3",
  "description": "Manually remove ads from certain websites.",
  "icons": {},
  "browser_specific_settings": {
    "gecko": {
      "id": "trueaim@janipen.uk",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://magma.com/d/*"
      ],
      "js": [
        "magma.js"
      ]
    }
  ]
}