Mac OS 8 dropped support for the GX printing architecture, though the text management and color management architectures survived. Elements of the text management architecture became part of the TrueType Specification and elements of the color management architecture became part of the International Color Consortium specification. With the advent of Mac OS X, portions of GX live on in Apple Type Services for Unicode Imaging (ATSUI), and in ColorSync, whose file format is identical to the original format developed for GX.