Work around for Qt's QSvgRenderer weakness.

[be1]

Hello,
Qt's QSvgRenderer does not render correctly SVG files generated by abcm2ps.
See: https://bugreports.qt.io/browse/QTBUG-88494
But maybe you would like to cherry-pick this workaround: 630a235 from https://github.com/be1/qabc.git (in the lib branch)...

[moinejf]

Hi,
This does not work: you lose the 'currentColor'.

[be1]

Hello,
Even if that patch is a bad hack (sure), currentColor isn't anyway "black" ?

[moinejf]

No, it is not. Try that:

X:1
L:1/4
K:C
%%voicecolor red
CDEF|GABc|

[be1]

Thanks for the hint.
If I could see in the code where currentColor is changed, I could modify the patch.
But it seems currentColor is never changed, for now: colors change are written directly as color or bgcolor attributes, as I can see. e.g:

svg.c:		fprintf(fout, "color:#%06x;", gcur.rgb)

But I understand this could change in future versions, and that, anyway, currentColor is a handy feature that should not be broken (by my patch). So I won't cry ;-)