Make Yapin' yours. Themes, colours, backgrounds, effects, badges, a Pixel Studio, focus mode and more, all inside Yap++.
The .zip is the same installer as a script: extract it and run the .bat.
Windows is careful with new downloads. Right-click the file, choose Properties, tick Unblock at the bottom, click OK and run it again.
If you see "Windows protected your PC", click More info, then Run anyway.