SVG element reference - https://developer.mozilla.org/en-US/docs/Web/SVG/Element
Bezier Curve animations - http://www.malinc.se/m/DeCasteljauAndBezier.php
Pomax book - https://pomax.github.io/bezierinfo/
Offset White Paper - http://media.unpythonic.net./emergent-files/papers/kim2005_offset.pdf