3D Color Changer is described as 'Simple tool for changing the colours of "Windows Classic" theme'. There are four alternatives to 3D Color Changer for Windows and Android. The best alternative is WindowBlinds. It's not free, so if you're looking for a free alternative, you could try SmartWindows or NiceDesktop.
WindowBlinds is a computer program that allows users to skin the Windows graphical user interface. It has been developed by Stardock since 1998, and is the most popular component of their flagship software suite, Object Desktop.
SmartWindows streamlines the way you work. It is perfect for professionals looking to optimize the overall work experience or switch between projects. You can save display preferences for applications with the help of a few clicks.