Goldsquare alpha #13

Goldsquare is a variation of a painting inspired by a work by my father titled L'Arbre Jaune.
As my second series on fxhash, I introduced several improvements:
More varied features:

• Color themes
• Paintbrushes, combs, shadows
• Progressive animation of shapes
• Various zoom levels
• Better spatial organization

Designed and developed by quiz7, using a custom-made set of tools based on D3.js.