Answered Purple pixels: how to fix them?

I have downloaded the following game content: CSS, DOD, Team Fortress 2, all of the Halflifes, and Portal. Which game content am I missing? A better question is: what game content does Se rious TTT use? Thanks.

 

CSS is used. Did you check that you extracted the content folder itself? I forgot to do that a few times myself.

 

This happened too me and what I did to fix it was to reinstall Gmod.
I don't know of any other fix.

 

Should it look like the first picture, or should I open the CSS folder (second picture) and drag that stuff into the addons folder?

 

The first picture should work.

Spoiler

 

These are dev textures. Owning CSS has nothing to do with it.

Have you tried re-downloading the map?

 

just a question which folder in your garrys mod directory did you put the folders in it might help get an answer as well

 

You're missing textures from the map, not games. That is the melon roller room after you die in the terroception map. You're missnig dev textures. Try reinstalling the map by first deleting it from your gmod files