The grayscale font-smoothing doesn't expect to be linearly blended,
as first assumed.
Amended nativetext manual test to better diagnose the native Core
Text behavior. Non-linear blending will result in the magenta
text having a dark outline against the green background.
Change-Id: I24a5f04eb1bd66fb98d621078d80ee9b80800827
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
The Qt and CoreText positioning is now in sync.
Change-Id: I0cbb5b150d1bef732674b8d42c64a040773a62ab
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>