---
title: "heatmap.colorExpr | Mobile sdk | Mobile sdk android | Android"
description: "colorExpr"
---

# heatmap.colorExpr

fun [MTHeatmapLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.heatmap/-m-t-heatmap-layer/).[colorExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.heatmap/color-expr/)(expr: [PropertyValue](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.dsl/-property-value/)): [MTHeatmapLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.heatmap/-m-t-heatmap-layer/)