Examine source code of Better Magma

{
  "name": "Better Magma",
  "description": "Block ads on magma.com and improve the site's layout",
  "version": "1.0.8",
  "manifest_version": 3,
  "icons": {
    "16": "img/icon16.png",
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "action": {
    "default_popup": "info.html",
    "default_icon": "img/icon16.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.magma.com/*",
        "*://magma.com/*"
      ],
      "js": [
        "js/adbuster.js"
      ],
      "run_at": "document_end",
      "world": "MAIN"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{63613477-7184-4eae-9438-7b3d7abb56cd}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "48.0"
    }
  }
}