I am successfully serving Koeppen-Geiger climate shift data from a MapServer instance. Here is an example WMS request to show the current state.
Unfortunately this looks nothing like the ArcGIS Koeppen-Geiger map. For comparison here is a full screenshot of the layer I am serving from the raw data:
I downloaded the map from here. There are a lot of files in the shapefile zip, and I'm not sure if any of them can help me get the desired output. Here is a screenshot of the files:
Additionally, when I load the shapefile into QGIS by itself it looks the same as delivered from MapServer.
Can anyone explain how I improve the map's aesthetics?