CleverRaven/Cataclysm-DDA — pull request #9050 by namarrgon (2014-09-16 15:28:17+00:00)
Title: Blockhead fix

Use the same tile for 't_concrete' as for 't_concrete_{v,h}'. Otherwise the half-transparent background of the 'unknown' tile will bleed through.

IMO, that texture doesn't look much like concrete but that's for another PR.