Paint

A small black-and-white bitmap editor for sketching directly inside a QIP interactive module.

Controls:

• Drag on the canvas to draw
• Left toolbar: pencil, eraser, brush, line, rectangle, oval, fill, spray
• Right click draws with white for tools that support it
• [ / ]: smaller or larger brush
• Z: undo
• C: clear
• I: invert

Each update changes the bitmap, undo buffer, tool, and drag state together. Only render replaces the published KTX2 image.