PLEASE NOTE: As of 2023, Steam has had an overhaul to its interface. This unfortunately includes removing the functionality of custom Steam skins. You can no longer apply custom Steam skins.
Are you tired of the regular Steam layout and style and want to change it up with a custom Steam skin? Today I’ll show you how you can install a custom Steam skin quickly and easily.
SteamSkins: http://steamskins.org/
SteamCustomizer: https://steamcustomizer.com/
Chapters:
0:16 Finding a Steam skin
1:15 Install skin
2:25 Disable / switch skins
2:40 (Issue 1) No library / broken pages
3:15 (Issue 2) Skin doesn't work with Steam Friends UI
I hope this helped you out!