message: Draw transparent background when creating QPixmap from svg
diff: @@ -591,6 +591,7 @@ QPixmap createPixmap(const QString& svgResource, int width, int height)
  QSvgRenderer renderer(svgResource);
  // QT 5.15 renderer.setAspectRatioMode(Qt::KeepAspectRatio);
  QImage image(width * dpr, height * dpr, QImage::Format_ARGB32);
  + image.fill(Qt::transparent);
  QPainter painter(&image);
  renderer.render(&painter);
  image.setDevicePixelRatio(dpr);
  