every program these days trying to hide the system window UI and replace it with their half-baked custom title bar thing that doesn't work the same as rest of the OS interface and also none of them work the same as each other either:

avali, shapeshifter, bunfox, dragon
(from most to least common)
send me asks if you want. You're always allowed to turn veynuz into things, by the way (in fact, you should)
otherkin (avali, usually)
a rat: ᘛ⁐̤ᕐᐷ
every program these days trying to hide the system window UI and replace it with their half-baked custom title bar thing that doesn't work the same as rest of the OS interface and also none of them work the same as each other either:
tbf programs have been doing that kinda thing since the early nineties (especially every kind of audio software that had to look like a blobject or expensive rack stereo). it's just the design goals have changed.
i absolutely can't justify it as anything but a personal bias, but somehow when winamp and sonique did it, it was cool
(i am willing to be a hypocrite about this specific case!)