ke', 'color'),
                  new go.Shape({
                    fill: 'red',
                    strokeWidth: 0,
                    ...sliderActions(true)
                  })
                    .bind('geometry', 'value', (v, shp) => {
                      var scale = shp.part.findObject('SCALE');
                      var p0 = scale.graduatedPointForValue(scale.graduatedMin);
                      var pv = scale.graduatedPointForValue(v);
                      var path = shp.part.findObject('PATH');