I have a series of points that are being visualized as a heatmap in ArcGIS Online. The issue is that my team does not particularly like any of the 4 default color ramps offered by ESRI in the "symbols" tab (see the image).
Is it possible to alter these color ramps without requiring additional resources--ArcGIS for Server/ etc? (I'm aware of how to do it in ESRI leaflet). It just seems strange that there would be such a limited palette in AGOL.