There have been several responses to my query about this which mention processing of fonts related to buttons added to the title bar.
I don't think I ever reported that I tried removing all title-bar buttons except the two built in items at top left (iconize) and top right (resize), neither of which can be removed without removing the whole titlebar. Removing all the user-specified buttons made no difference to the height of titlebar: it remained taller than it used to be until the height mysteriously increased a few weeks ago, though only on my laptop. Do the two built in left and right buttons depend on font processing? Ctwm on my PC does not have this problem. Neither did laptops using ctwm for many years. Anyhow, having tried living without titlebars on the laptop's small screen I no longer miss them. The alternative functionality provided by menus and mouse-button actions works well enough, and I've gained a small amount of useful screen space in various windows. That does not get rid of my curiosity about what caused the thicker title bars. They suddenly arrived in the middle of a long process of reinstalling my old linux functionality after being forced to reinstall following a failed attempt to shrink windows 10 -- which stopped everything working. After I had reinstalled windows 10 from a usb stick, followed by reinstalling fedora 31 from a usb stick, I had to gradually build up the collection of rpms I previously had on the laptop, using an old list of installed packages as a guide. At first I had ctwm working as previously, with small title bar and my old buttons. But after installing a lot more missing packages I suddenly found ctwm title bars had grown taller, and nothing I tried could undo that. Perhaps that summary will suggest something I did wrong, though it's purely an academic question for me now that I've been converted to ctwm without title bars on the laptop. A remote possibility is that one of the several fedora 31 updates that have occurred in the past few weeks is responsible. I may later get rid of titlebars on my desktop PC, after the new one I've ordered arrives -- on which I'll install F31. I'll first try running with titlebars for a while to see if I can replicate the problem that's on the laptop running F31. Despite these problems I remain grateful for ctwm. It's more easily configurable than any other window manager I have tried and it seems to be very light-weight, always using a tiny fraction of memory and cpu time as shown by top or htop. Aaron.
