Urban Microclimate_UTCI is present ONE colour.. what is the problem?

outdoor-comfort-map

#1

Hi guys,
I am tried to analysis outdoor microclimate analysis. ( I used Hydra GH)
but somehow it shows only one color…

image

I want to expect more like various color spectruem.

what is a problem?

Urban_Microclimate_-_Simple_Spatial_UTCI_daegu.gh (464.7 KB)