Here’s something for those, who are stuck with the Basic skin, and don’t like the default Taskbar appearance...
...but would rather have it look different:
Unfortunately, the Basic Taskbar appearance can't be changed thru settings, but requires you to alter the image files it's based on.
This said, as the images are only a few pixels big, it's not difficult at all.
So here is how to change it: Taskbar - Customize Skin