I'd like to be able to render my clusters in a way distinct from individual points.
I'm using the unique values renderer on my GeoJSON layer to show temperature with individual locations as pins. I'd like to show the clusters as larger circles with the numbers within to make then distinct from the numbers representing temperature beside the individual points.
The FeatureReductionCluster doesn't implement a renderer property, so there is no individual control over this.
In addition, colouring the cluster with the most common colour isn't necessarily very useful. I'd like to do something similar to a plugin I used in Leaftlet to create a pie chart for the clusters:
This has the additional benefit that the text representing the cluster count is always black text on a white background, so is more accessible. Whereas, on hot days, my ArcGIS clusters would show black text on a red background.