Hi! I managed to reproduce with this fairly minimal configuration: (set-background-color "#191919") (set-foreground-color "burlywood") Because the config is much smaller, the flash of white is much shorter, but still noticeable. On Tue, Jul 25, 2023 at 2:43 PM Eli Zaretskii wrote: > > From: Yanchi Tóth > > Date: Tue, 25 Jul 2023 10:56:31 +0200 > > > > White background color flashes on startup, before background color from > > config takes effect in parts of the rectangle occupied by Emacs. Didn't > > happen on 28.2, but does happen on both this RC, and the other 29 > > pretests. See video attachment, and please let me know if I can be of > any help. > > Please show a minimal init file that can be used to reproduce this > behavior. > > Thanks. >