ectly, as FreeType is a font library, not a
        general-purpose graphics library or text rendering service.
        However, note that the anti-aliased renderer allows you to convert a
        vectorial glyph outline into a list of &lsquo;spans&rsquo; (i.e.,
        horizontal pixel segments with the same coverage) that can be
        rendered through user-provided callbacks.</p>

        <p>By providing the appropriate span callback, you can render
        anti-aliased text to any kind of surface.  You