bug#55543: 29.0.50; Unintended transparancy in Emacs Frame

[Po Lu]

Jai Vetrivelan <jaivetrivelan@gmail.com> writes:

> Hello,
>
> I’ve rebuilt Emacs from master without pgtk flag and now the transparency of
> the frame makes it’s contents unintelligible.  This happens with both
> `emacs’ and `emacs -q’ but not `emacs -Q’.  I’ve attached screenshots of
> the last two for reference.

Please show the output of "xrdb -query".