---
title: "MTPolygonLayerOptions.outlineOpacity | Mobile sdk | Mobile sdk android | Android"
description: "outlineOpacity"
---

# MTPolygonLayerOptions.outlineOpacity

val [outlineOpacity](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.helpers/-m-t-polygon-layer-options/outline-opacity/): [MTNumberOrZoomNumberValues](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.helpers/-m-t-number-or-zoom-number-values/)? = null