x: y (layer): z: Zoom: Tool: Brush Erase Line Circle Select/Move Fill shape Undo Redo Clear Share

Use mouse wheel to zoom.
Click and drag empty canvas to pan.
Tools: brush, erase, line, circle, select/move.
Undo: Ctrl+Z, Redo: Ctrl+Y. Copy/Cut/Paste: Ctrl+C/X/V.
Blocks saved automatically.