--- a/src/newgrf.cpp	Sun Dec 16 15:38:51 2007 +0000
+++ b/src/newgrf.cpp	Sun Dec 16 17:50:09 2007 +0000
@@ -952,6 +952,14 @@
 						ClrBit(dts->ground_pal, 15);
 						SetBit(dts->ground_sprite, SPRITE_MODIFIER_USE_OFFSET);
 					}
+					if (HasBit(dts->ground_sprite, 15)) {
+						ClrBit(dts->ground_sprite, 15);
+						SetBit(dts->ground_sprite, PALETTE_MODIFIER_COLOR);
+					}
+					if (HasBit(dts->ground_sprite, 14)) {
+						ClrBit(dts->ground_sprite, 14);
+						SetBit(dts->ground_sprite, PALETTE_MODIFIER_TRANSPARENT);
+					}
 
 					while (buf < *bufp + len) {
 						DrawTileSeqStruct *dtss;