Windows 10 had one groundbreaking UI innovation, but no one adopted it and even Windows 11 discareded this revolutionary idea:

BUTTONS NEXT TO EACH OTHER AND AT THE EDGE OF A BOX DON"T NEED AN ADDITIONAL MARGIN

Windows 10 was the first and last OS where I never accidentally clicked right next to the X on a window, in a passive area that had no other purpose so it might as well have belonged to that motherfucking button.

I passionately hate this trend, adopted nowadays by every OS, that everything needs to be rounded, separated from the things around it, and "allowed to breathe". They don't breathe. They're not alive. They're fucking UI elements and the space between them is unused, lost space.

The only interaction a button has with its surroundings is that it pushes other content away to make room for itself and responds to the cursor. It doesn't wiggle, it doesn't grow and shrink, and it ESPECIALLY doesn't fucking breathe. Please, just let me click the motherfucking button.

Relatedly, do you know of a good, preferably bluish dark GTK theme that provides window decorations that stretch the full height of the titlebar and are laid out next to each other at the very end of the bar without gaps?