
However, custom Windows themes don't apply to UWP/modern apps (like the Settings panel, Calculator, Windows Mail, Calendar, etc.) and apps that have a skinning system of their own like for example Winamp (a media player that uses its own skins) or the Microsoft Office apps (that have their own custom user interface). The first thing you have to understand is that Custom Windows themes only apply to Win32/classic apps that inherit the classic Windows UI.

If you're in a hurry, jump ahead to the HOW-TO GUIDE below.

Hey guys, in case you're new to Custom Windows Themes, here is some information that you might find useful and a guide explaining how to install and use a custom theme.
