I originally sent this message, and subscribed to receive replies.
Carsten Haitzler appears to have replied to this message in a mirror,
with a cc to xorg@lists.x.org. I did not receive that reply. I'm
guessing that subscribers only get messages sent "to" the list, and not
"cc" the list? Carsten's full reply is here:
https://lists.x.org/archives/xorg/2024-February/061540.html
I don't now the proper protocol for copying text from other messages,
but I wanted to respond to the opening comment:
> Your question really should be directed at the mate picom etc. developers, not
> here unless you want to discuss the general x11 compositing and rendering
> pipeline etc. .. so I'll answer from that point of view.
I believe that the Xpresent extension is not part of picom. Instead, it
is part of xorg itself:
https://gitlab.freedesktop.org/xorg/lib/libxpresent
I was informed of this when I initially asked on the Ubuntu MATE forum:
https://ubuntu-mate.community/t/marco-xpresent-compositor-transparent-title-bars/26968
Since Xpresent is not a compositor, I'm going to spend a little time
seeing if I can figure out how to modify the theme I'm using (YaruOK) to
have transparent title bars. If I can't get that to work, I'll switch
to Xrender (which definitely is part of picom, and is a proper
compositor.)
--
Guy Rouillier
