Currently working on squeeze titlebars.
This is something which some people wanted in fvwm, and it actually comes from #ctwm, whereby the titlebar was squeezed to its length so it didn't take up the whole width of the window.
Wayland doesn't have any shape support (a la XShape extension) so doing this manually is tricky.
Anyway, screenshot attached of what squeezed titlebars will look like in CoW. Options for left, centre, or right aligned.