I found another issue. When i have a st window open and generate some output (ls -l) and then decrease and increase the size again the content isn't redrawn to the match the actual size.
I can workaround it with tmux most of the time but still even with tmux active the redraw is sometimes not correct or some parts are just "cut" off. Is this intended to keep lightweight or is this something missig? thanks -- Andreas Herz