Window controls aren't in the corner of the window

[popey]

Using quickgui from tip of git.

If I build using flutter 3.3.8 on Ubuntu 22.10 (Kubuntu) and run, the X window close button is offset from the corner of the window. I don't know if this is a flutter or quickgui issue.

I'd expect the close icon to be in a similar location to other applications.