SVG renderers perform badly at small pixel sizes, as they don't do stuff like subpixel rendering. Those techniques are usually employed in font rendering. Anot

SVG renderers perform badly at small pixel sizes, as they don't do stuff like subpixel rendering. Those techniques are usually employed in font rendering. Another issue is that you usually want reduced complexity at small render sizes. So you have a few additional .svg's that get used just at one small size.