Background of png converted svg is white

[djonasdev]

I don't want to convert my SVGs as png. That works so far. Unfortunately, the background of the SVG object is shown in white. If I now set the background to green, for example, then the background of the PNG is green, but that of the SVG is not.

var converter = new ImageSvgConverter(new WpfDrawingSettings());
converter.EncoderType = ImageEncoderType.JpegBitmap; // or png; doesn't matter
converter.Background = new SolidColorBrush(Colors.FooColor);
converter.Convert(...);

The white part should also be colored in green / purple. But it's always white. I have also tried other SVG files.