diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerConfig.java b/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerConfig.java
index c577f72f35..0882225d68 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerConfig.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerConfig.java
@@ -98,4 +98,14 @@ public interface GroundMarkerConfig extends Config
 	{
 		return 2;
 	}
+
+	@ConfigItem(
+		keyName = "fillOpacity",
+		name = "Fill Opacity",
+		description = "Opacity of the tile fill color"
+	)
+	default int fillOpacity()
+	{
+		return 50;
+	}
 }
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerOverlay.java b/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerOverlay.java
index 266e89c9b5..ffe39109c8 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerOverlay.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/groundmarkers/GroundMarkerOverlay.java
@@ -114,7 +114,7 @@ public class GroundMarkerOverlay extends Overlay
 		Polygon poly = Perspective.getCanvasTilePoly(client, lp);
 		if (poly != null)
 		{
-			OverlayUtil.renderPolygon(graphics, poly, color, borderStroke);
+			OverlayUtil.renderPolygon(graphics, poly, color, new Color(0, 0, 0, config.fillOpacity()), borderStroke);
 		}
 
 		if (!Strings.isNullOrEmpty(label))
diff --git a/runelite-client/src/main/java/net/runelite/client/ui/overlay/OverlayUtil.java b/runelite-client/src/main/java/net/runelite/client/ui/overlay/OverlayUtil.java
index 26497ab43d..df52467132 100644
--- a/runelite-client/src/main/java/net/runelite/client/ui/overlay/OverlayUtil.java
+++ b/runelite-client/src/main/java/net/runelite/client/ui/overlay/OverlayUtil.java
@@ -54,12 +54,17 @@ public class OverlayUtil
 	}
 
 	public static void renderPolygon(Graphics2D graphics, Shape poly, Color color, Stroke borderStroke)
+	{
+		renderPolygon(graphics, poly, color, new Color(0, 0, 0, 50), borderStroke);
+	}
+
+	public static void renderPolygon(Graphics2D graphics, Shape poly, Color color, Color fillColor, Stroke borderStroke)
 	{
 		graphics.setColor(color);
 		final Stroke originalStroke = graphics.getStroke();
 		graphics.setStroke(borderStroke);
 		graphics.draw(poly);
-		graphics.setColor(new Color(0, 0, 0, 50));
+		graphics.setColor(fillColor);
 		graphics.fill(poly);
 		graphics.setStroke(originalStroke);
 	}