bug#40845: SVG rendering issues

[Clément Pit-Claudel]

On 25/04/2020 13.02, Eli Zaretskii wrote:
> IMO the foreground of an image shouldn't be affected by the
> current face's foreground.  Images should come with their own colors,
> and be displayed like that.  I think in the context of the discussion
> that led to this bug report it's actually almost a must: we want
> images with attractive colors to serve as the icons, we don't want
> them to be affected by whatever face happens to be nearby.

Yes, of course: if an image has a foreground color, it should be respected.
But it's not uncommon for SVG images to not include a foreground color, as 
shown in the repro.  In that case, the image should use the current foreground 
color, I think.
(of course, a :foreground keyword, if any, should take precedence; that is 
issue 4).