I am messing around with different themes and customization options, and noticed that the “colors” document has a line that is responsible for setting the color of the taskbar. My question is: is it possible to make said taskbar have a gradient color? I’ve seen it done on the oxygen theme which is installed by default, but I can’t find its file directory and thus, can’t see how it is setup.
Sure, Plasma theming allows for this. It won’t be a simple setting though, but rather a matter of creating your own Plasma theme.
https://www.youtube.com/watch?v=prG9xFkvlNg shows a pretty cool example of what’s possible, and there’s loads of documentation for how to do this at Plasma Style tutorial | Developer.