Am 26.05.2015 um 13:34 schrieb Scott Kostyshak <skost...@lyx.org>:

> Attached is a screenshot of how the LyX banner looks for me on Ubuntu
> with Qt 5.5dev.
> 
> The bottom line has some strangely colored pixels, instead of just
> being a black/grey line.
> 
> One time, it was extreme (e.g. almost rainbow colored). This is
> attached. I annot reproduce that though. But even now it seems
> slightly strange, although I do have to look very close to see the
> difference. But to me there is a clear difference between the bottom
> and the top lines.
> 
> Does anyone else see something like this?
> 
> Scott
> <Screenshot from 2015-05-26 07:21:57.png><Screenshot from 2015-05-26 
> 07:30:08.png>

Yes, here on a Mac with Qt5.4.1 it's the same. 
When I open the SVG in Inkscape all look sane.

The code to render the SVG is pretty simple:

QSvgRenderer svgRenderer(toqstr(fname.absFileName()));
splash_ = QPixmap(splashSize()); // QSize(800,500)
QPainter painter(&splash_);
svgRenderer.render(&painter);

Stephan

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