The fix to bug #16089 forces grayscale antialiasing and disables hinting for custom downloaded fonts to provide a consistent look.
It was pointed out that grayscale antialiasing may look out of place if the platform is using subpixel antialiasing for other text.
It may even be the case that we want to just use the platform font options rather than enforcing a single look and feel, though this may result in inconsistent metrics across platforms which removes some of the appeal of custom fonts.
does anyone have thoughts on whether/how we should fix this?
Fixed in r36309.