GrafX2

GrafX2 is a bitmap paint program built around indexed color. Images are drawn in a palette of at most 256 entries, and that palette is part of the document rather than a step applied at export time. The orientation is therefore toward pixel-level raster work — sprites, tiles, icons, screen mockups — rather than photographic retouching or vector illustration, where continuous-tone color and resolution independence matter more.

Because the format is indexed, drawing operations set the color index of individual pixels, and editing a palette entry changes the appearance of every pixel that references it. This coupling of palette and canvas is the defining constraint of the program and the reason it suits work with a fixed, limited color budget.

The record lists Linux as the platform, so availability elsewhere should be confirmed separately. Licensing is stated as GPL-2.0 and CECILL-2.0; anyone reusing the code should read both license texts.