[Development] Font rendering on X11/Wayland: New FreeType API to toggle LCD filters and stem darkening on a per-font basis, would love a review

[Fredrik Höglund]

On Saturday 19 November 2016, Nikolaus Waxweiler wrote:
> > Anyway from an API point of view, the easiest implementation would be if Qt 
> > could read on initialization if freetype can do stem darkening on all outline 
> > fonts. Since it can't do that currently, an alternative would be to be able to 
> > query it per face, and then carry the information on.
> 
> If the new FT_Face_Option() is present, FT can do stem darkening on
> (almost entirely) all outline fonts :) The toolkit just has to invoke
> the function on all FT_Faces to be rendered.

But will stem darkening work with the bytecode interpreter?

Fredrik