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The logo is a variation of the Pythagorean spiral and has been created with the basic support of Inkscape for L-systems. As production rules, we used F=AA[--F]+AF where F is the start symbol and A a terminal. The angles used were 30°. Afterwards, the color and text was added by hand.

The actual Pythagorean spiral cannot be drawn as we would need to be able to draw triangles with irrational leg lengths that, moreover, decrease. This is not possible with the simple Inkscape facilities.