bug#47074: Replace XPM icons with Unicode codepoints in customize/widgets

[Stefan Kangas]

Eli Zaretskii <eliz@gnu.org> writes:

> I don't think names matter in this case, as no one sees them except
> the source code.

If we only consider custom.el I agree completely.  But I was personally
hoping that these "improved" icons will see some use also outside of
custom, including perhaps in third-party packages.  It would be nice to
have these better names for such use.

Would it be okay to just have two names/locations for these XPM files?

(I seem to remember that we can't use symlinks due to our support for
Windows or something?  But perhaps even without symlinking the cost of
duplicating the XPM files is fairly low, as they are only around 1 KiB
each.  The biggest problem would be if someone decides to change these
files (but I see no changes in the last decade, and presumably XPM will
only get less relevant over time).)