A polymorph tessellation is an irregular tessellation of regular polygons.
As the main tessellation used in this Truchet pattern is a polymorph tessellation and as the design morphs from chaotic patterning to rigid order we decided it was an appropriate name.

Keyboard interaction:
r - redraw with randomised tiles and colours within the same palette, other variables constant.
c - redraw with only chaos tiles.
o - redraw with only ordered tiles.
m - redraw with mixed tiles.
b - remove border.
d - restore border.
1,2,3,4,7 - redraw at corresponding values x 1000.
All of the above redraw the artwork and so will take a few seconds to complete.
Tiling pattern feature "Hexagons, Squares and Triangles" behaves slightly differently to the others in response to the 'o' and 'c' keys.
Each palette contains 7 colours from which 5 are chosen for each rendering. These are re-chosen on randomisation so may change the feel of the artwork significantly.