diff --git a/chunk_render.go b/chunk_render.go
index 7349c13..e3622f9 100644
--- a/chunk_render.go
+++ b/chunk_render.go
@@ -5,10 +5,54 @@ import (
 	"image/color"
 
 	"github.com/df-mc/dragonfly/server/block"
+	"github.com/df-mc/dragonfly/server/block/cube"
 	"github.com/df-mc/dragonfly/server/world"
 	"github.com/df-mc/dragonfly/server/world/chunk"
 )
 
+func chunkGetColorAt(c *chunk.Chunk, x uint8, y int16, z uint8) color.RGBA {
+	p := cube.Pos{int(x), int(y), int(z)}
+	have_up := false
+	p.Side(cube.FaceUp).Neighbours(func(neighbour cube.Pos) {
+		if !have_up {
+			block_rid := c.Block(uint8(neighbour[0]), int16(neighbour[1]), uint8(neighbour[2]), 0)
+			b, found := world.BlockByRuntimeID(block_rid)
+			if found {
+				if _, ok := b.(block.Air); !ok {
+					if _, ok := b.(block.Water); !ok {
+						have_up = true
+					}
+				}
+			}
+		}
+	}, cube.Range{int(y + 1), int(y + 1)})
+
+	col := color.RGBA{0, 0, 0, 255}
+	block_rid := c.Block(x, y, z, 0)
+	if block_rid == 0 && y == 0 { // void
+		col = color.RGBA{0, 0, 0, 255}
+	} else {
+		b, found := world.BlockByRuntimeID(block_rid)
+		if found {
+			col = b.Color()
+		}
+		/*
+			if col.R == 255 && col.B == 255 {
+				name, nbt := b.EncodeBlock()
+				fmt.Printf("unknown color %d  %s %s %s\n", block_rid, reflect.TypeOf(b), name, nbt)
+				b.Color()
+			}
+		*/
+	}
+
+	if have_up {
+		col.R -= 10
+		col.G -= 10
+		col.B -= 10
+	}
+	return col
+}
+
 func Chunk2Img(c *chunk.Chunk) *image.RGBA {
 	img := image.NewRGBA(image.Rect(0, 0, 16, 16))
 	hm := c.HeightMap()
@@ -19,24 +63,8 @@ func Chunk2Img(c *chunk.Chunk) *image.RGBA {
 			height := hm.At(x, z)
 			height_liquid := hml.At(x, z)
 
-			col := color.RGBA{0, 0, 0, 255}
+			col := chunkGetColorAt(c, x, height, z)
 
-			block_rid := c.Block(x, height, z, 0)
-			if block_rid == 0 && height == 0 { // void
-				col = color.RGBA{0, 0, 0, 255}
-			} else {
-				b, found := world.BlockByRuntimeID(block_rid)
-				if found {
-					col = b.Color()
-				}
-				/*
-					if col.R == 255 && col.B == 255 {
-						name, nbt := b.EncodeBlock()
-						fmt.Printf("unknown color %d  %s %s %s\n", block_rid, reflect.TypeOf(b), name, nbt)
-						b.Color()
-					}
-				*/
-			}
 			if height_liquid > height {
 				bw := &block.Water{}
 				wcol := bw.Color()