Live Web: Collective Drawing in Red and Black

I modified our example from class a little bit … and added a button to change the collective drawing color: it is either red or black, everybody is forced to adapt to the new color but can choose the canvas they want to work in. As the canvas is split between a red and black background the “pen” can be either used as an obscurer (black on black/red on red) or a highlighter (red on black/ black on red). The results look strangely beautiful as the dots seem to have depth or resemble a point-cloud:

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… and here some code. And more random drawings:

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