{ 
    "src":    "RPM.svg",

    "animations": [
      {
        "element": "#Needle",
        "type":    "transform",
        "transforms": [{
          "type": "rotate",
          "a": {
            "property": "rpm",
            "interpolation": "RPMInterpolation.xml"
          },
          "x": 256,
          "y": 256
        }]
      }
    ]
}