bug#13476: 24.3.50; Reverting scroll-bar face customization has no effect

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> I don't understand why we need to set the frame parameter when the
> customize the face to begin with, I guess.

Because that's what you would expect to happen: customizing the
foreground or background of the scroll-bar face should affect the scroll
bar colors, which are frame parameters.