Skia is a humanist sans-serif typeface designed by Matthew Carter for Apple Computer in 1994. Skia is Greek for "shadow,"and the letterforms take inspiration from 1st century BC Greek writing. The typeface was the first QuickDraw GX font, featured in System 7.5 and higher, including Mac OS X. It is the only font Apple has shipped with their OS which makes use of TrueType variable axes (a feature akin to Adobe's "multiple master" technology).
Skia was also the code name for the QuickDraw GX project.