What is More Materials?
More materials is a pure LUA script aiming to fix a problem that you do not have all the materials from source games you own and are mounted to gmod. This script purely adds materials from games you BOUGHT and MOUNTED in your gmod, so this does not have any materials in it.
Rumors
Ok, what do I mean by rumors, I mean a simple thing, people spread total bs about this addon containing malicious code or files. First of all this addon is one lua file that is adding materials from mounted source games to you material tool's list. Having that in mind let's continue. Long time ago a rumor dropped that original more materials addon (made not by me) that was on workshop contained some malicious code but it was never confirmed by me or anyone else but because I'm very careful person I created this and just shared it with people so that they can use it.
Q&A
Q: Will people see materials on props when they don't have that addon?
A: Yes they will, because as I mentioned it only adds materials to your material list.
Q: Do I need CS:S, HL2 and other games?
A: You don't have to have them, but if you don't have them the materials from those games will not appear in your list.
Q: Does this addon contain any backdoor?
A: No it doesn't have any backdoors. If you don't believe me just extract it with gmad extractor.
Q: Can I make <insert texture name here> texture?
A: No, I can't. I'm codder not material maker. (So stop ♥♥♥♥♥♥♥ asking.)
Q: Does it make loading time extended?
A: No it doesn't, it is pure lua that loads already preloaded materials into your game.