I’m just curious if there are ways to customize the Plasma style and window decorations by creating my own. I would like to know if anyone knows how to make the taskbar look a lot more 3D instead of flat?
Something similar to the picture but I’m mostly focusing on the taskbar and application launcher. Are there any files I might need to edit?
Will I need to learn some programming?
When it comes to themes I feel like I’m in a world of flat these days 
Ahhhh…my eyes. 
OK, to answer your question.
Here is the documentation on creating themes:
https://develop.kde.org/docs/plasma/theme/quickstart/
It is less programming and more art with some technical details thrown in.
I will certainly try that out
Holy smokes. . . . my eyes. . . . my eyes. . . .
rich 
I just wish there was a lot more variety instead of just flat. The picture is from 20 years ago when there was such variety. You could choose to go flat or 3D.
