{
  "name": "gpu blacklist",
  "version": "0.1",
  "entries": [
    { // ATI Radeon X1900 on Mac
      "os": {
        "type": "macosx"
      },
      "vendor_id": "0x1002",
      "device_id": "0x7249",
      "blacklist": [
        "webgl"
      ]
    }
  ]
}