On: Why does part of the Windows 98 Setup program look...

[nullindividual]

Windows 2000 introduced layered windows (mouse pointer has a drop shadow!), transparency effects, and other features into the Shell [0]. In my opinion, having used Windows since 3.0, 2000 is my favorite in terms of icons, shell, etc.

[0] https://learn.microsoft.com/en-us/previous-versions/ms997507...