--- a/rail_cmd.c	Sat Sep 11 13:37:44 2004 +0000
+++ b/rail_cmd.c	Sat Sep 11 14:48:31 2004 +0000
@@ -1541,7 +1541,7 @@
 			if (image & 0x8000)
 				image |= _drawtile_track_palette;
 			image += tracktype_offs;
-			if (!(_display_opt & DO_TRANS_BUILDINGS))
+			if (!(_display_opt & DO_TRANS_BUILDINGS)) // show transparent depots
 				image = (image & 0x3FFF) | 0x3224000;
 			AddSortableSpriteToDraw(image, ti->x | drss->subcoord_x,
 				ti->y | drss->subcoord_y, drss->width, drss->height, 0x17, ti->z);