Re: scratch/icons 09509f4fa1 05/11: Import Material design icons

[Po Lu <luangruo@yahoo.com>]

Stefan Kangas <stefankangas@gmail.com> writes:

> There should be some kind of fallback for when SVG is not available,
> yes.  I'm not yet sure exactly what that will look like.  The problem
> with generating PBM versions AFAIK is that they don't scale, so maybe
> we'd want to prefer Unicode symbols in those cases (or even emojis,
> though I'm not exactly a huge fan).

We cannot put symbols in the tool bar, AFAIK.  (And what if no such
Unicode font exists, which is the situation under the xfont backend and
Windows 9X for most Unicode Emoji?)

I think relying on the normal, primitive, scaling is fine, should SVG
support not be available.  Modern systems that can display the Unicode
symbols will also be able to run librsvg.

> We don't need to have any different variants: the svg icons will use
> whatever foreground/background the current face has.

No, what I meant was to provide icons that have contrasting colors.
This makes the icons easier to visually identify.  For an example of
this, see how spell.xpm has a green checkmark put up against black text,
which makes it easier to spot in the toolbar than similar icons in an
Android program that uses single-color icons.

Thanks.