on xterm with double-buffer, vis repaint background with not usual color after a quit

[wcsxfrm]

Problem

On xterm with double-buffer (-xrm '*buffered: true'), vis repaint background with not usual color after user quit (:q!)

• problem exists on: v0.8, v0.7, v0.6 (BUT, it works on v0.5)
• with double-buffer disabled (xterm default): it works on all versions
• with TERM=xterm (16 colors): it always works
• when the xterm window was resized by user, the background color was restored
• also, glitch occurs too when user suspend (ctrl-z) instead :q!
• others curses programs work as expected

Steps to reproduce

• on xterm -xrm '*buffered: true' instance
• TERM=xterm-256color vis
• :q!

vis version (vis -v)

all release versions and master, except 0.5

Terminal name/version

XTerm(372)

$TERM environment variable

xterm-256color

[rnpnr]

Additional info: this is only an issue with the curses backend and only when you start with a theme like zenburn enabled. It doesn't happen if you switch to zenburn while running.

[wcsxfrm]

Additional info: this is only an issue with the curses backend and only when you start with a theme like zenburn enabled. It doesn't happen if you switch to zenburn while running.

yes. however, even in that situation, the problem yet occurs when, instead quitting with :q!, vis receive a TSTP signal (ctrl-z key on tty)

ctrl-z.mp4