Those look reaaaaally nice for when your just developing. Not good for when you want the finishing touches but good for when your developing.
I noticed that there in the hl2 textures but i was wondering, Who would go through so much work to just texture something they were just going to retexture later?
So I thought there must be some way of wall and Floor textures just are one texture or another by default. Basically my question is, How Do I get those Orange and Gray Textures automatically when developing a map?