TheoryPaint

TheoryPaint is a raster graphics editor by Theorysonic. It was first released in 1981 for TS-OS 5. It is the most advanced raster graphics editor.

Features

 * Optimized for TheoryTablet Pro, TheoryDesk, and TheoryPencil.
 * 500+ preset pens, pencils, brushes, and markers.
 * More layers and skins.
 * Full layer controls with 25 layer blending modes.
 * Advanced selection tools (marquee, lasso, magic wand).
 * Gradient fills tools (linear, radial).
 * Powerful drawing effects.
 * Continuous auto-save.