I’ve resisted for a long time to recolour my #tessellation drawings. They are after all, supposed to be identical tiles by their true definition. In my opinion, it is good to have a bit of a challenge in deciphering a tessellation. The fact that each character has the same colouring as its neighbour makes it difficult for some viewers to identify the outer limits, the perimeter of the tile. So I will relent. The symmetry group behind the drawing will dictate the number of different colour combinations to use, for the best, easiest interpretation.
Here is the original Jewel Thief tessellation, and below that, the newly recoloured version.

Jewel Thief tessellation by Francine Champagne, ©2013 — Symétruc de cambrioleur

Jewel Thief tessellation recoloured version by Francine Champagne, ©2017— Symétruc de cambrioleur
Okay, so it is easier to see that there are three orientations to the characters (symmetry group P3) by using the colour coding. I admit, I kind of like it all redone. Also tested it on Alex Broadfoot, below the original identical tiles, and following below that, the recoloured version.

Original colouring on the Alex Broadfoot tessellation

Alex Broadfoot tessellation, recoloured version, ©2017, F.Champagne, http://www.tessellations.ca
Works for me!
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