Orange and Gray textures

[tearinox]

http://www.interlopers.net/images/hl2tutorials/bendy_pipes/pic1.jpg

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?

 

[Cunbelin]

Hmm well I just select the orange grid in my texture browser as most of the time I make walls, and then switch it to the gray for floors. It's a little easier if you type in dev/dev_measure as a filter.