How could I create a continuous colormap for point data in GeoServer? I am planning to serve satellite measurements (METOP IASI) as point data in GeoServer 2.15 and want the point colors to represent the measured values. I initially thought I could easily define an SLD style with a colormap, like I did before for raster data, but it seems colormap styling is not available for point vector data. I could assign colors to value bins, but that would give a discrete color map rather than a continuous one. Any ideas?