Here are the WORKING links for the Anime and Manga Ultimate packs..
Square Anime Folder Icons
Square Manga Folder Icons
So, while I was doing this I noticed that there are some inconsistencies between the Glow and Glowless packs (as in, some icons are only in the Glow pack, and some other are only in the Glowless one).
I'll be working on fixing this and release a patch for both packs as soon as I'm done remaking the missing icons. In the meantime I'll also be taking REQUESTS so if you have any, I'm here.