Most digital art software buries tools in side panels. Sketchbook Pro 9 introduced a customizable . By pressing a hotkey (default: Space or Right-click), a circular menu pops up under your pen tip. You flick to change brushes, colors, or tools without moving your hand from the tablet. It is arguably the fastest UI ever designed for a pen-only workflow.
The brush engine in version 9 is buttery smooth. It utilizes (now commonly called stabilizers) that feels organic, not mechanical. The "Synthetic Sable" brush and "Pencil" tool are industry benchmarks. The engine’s ability to handle tilt, pressure, and rotation at high resolutions without lag is unmatched even by some modern apps. sketchbook pro 9