Please stop using FlatLaf in your Swing applications, it looks soulless and corporate and monotonous. It looks like something that would come out of a Google office for Android or something, not something you would see on a desktop.
I'm not the kind of person to push Frutiger Aero or anything, but come on. Minimalism to this point just looks bad and distasteful. Metal looks good and has character. It looks like it means business and belongs in an enterprise environment. I like the gradients and shadows.
It started with Facebook and their flat, gray vector art that conveys exactly no information and depth to the user. Then Google made it worse with their stupid huge Material 3 buttons, I run crDroid on my phone just so I can disable the huge buttons inside the menu at the top and change them to circles.
I hope computers in the future stop using touchscreens and go back to proper keyboards and mice so we have design that actually respects the user and their time.