Last modified: 2010-05-15 15:38:50 UTC
The SVG renderer currently seems to render the image at the specified size, then
resizes it as a bitmap, resulting in poor-quality upscaling and overly-aliased
downscaling. Though not a major concern for Wiki software, it would be a
worthwile improvement to embrace the use of vector graphics over bitmaps.
See: http://en.wikipedia.org/wiki/User:Ktims/Sandbox/SVG for example.
You've requested a rendering larger than the natural size of the image, which isn't
allowed to avoid resource-hogging.
Especially on commons, I'm not sure this is a good idea. Many vector images
don't have a 'natural' size and their size is determined by context. I think it
would be more appropriate to base the resource limitation on absolute size
instead. For iconography, the natural size might be quite small, however the
ability to increase the size losslessly may be useful.
A minor thing in any case.