Version 1.0 - Initial release -Freehand brush drawing with 6 brush sizes -Eraser tool -Straight line tool -Rectangle (box) tool -Circle tool -Flood fill tool with scanline algorithm — fills any bounded area from a tap point -30-color palette with full color picker overlay -Undo last stroke -Shake to clear canvas -Drawing auto-saves on exit and restores on next launch -Collapsing sidebar UI — hides after 3 seconds of inactivity, returns on any button press