I'm investigating why some OTF fonts render fuzzy on Windows 7. A TTF version looks crisp, yet OTF is rendered a little fatter.
I know DirectWrite on these older Windows has it's problems, but I want to see if there's anything I can influence in the font itself to make it look a little better. Playing with the "blue values" in the generated font doesn't seem to make any visual difference (admittedly I only just now learned about them so this might be obvious). Are these only used while generating the font and simply stored as metadata? I understand CFF hinting is done in the rasteriser, but is there anything you can influence from the font itself?