Simple whiteboard

A whiteboard in React and Vue, with buttons for the tools, undo and redo, the zoom and fitting all shapes into view. The color buttons color the selected shapes and the shapes you add next. The demo adds pink to the board's colors. Export saves the board to a JSON file, and Import opens one, in place of the board or added to it. PNG and SVG save the selected shapes, or the whole board, as an image, and Copy copies them as a PNG. The board starts with sticky notes, shapes, arrows and a pen line. Press the key of a tool, like N for a note, to choose it.