No, neither had I … However it turns out to be a very simple example of a quasitiling (like Penrose tilings) but where the tiles are all right-angle triangles or rhombus. Specifically, I’m referring to this - https://en.wikipedia.org/wiki/Ammann%E2%80%93Beenker_tiling tiling scheme.
It has some relationship to the ‘silver ratio’ which I had not heard of either, but is related to the golden ratio. Oh and the ‘Pell numbers’ which, you may have guessed, I had not heard of.
Yes, so I set out to draw this from scratch, to see what it looked like at scale. However this first attempt was not great. This is the pencil colouring:
Broadly this was ok. I miscoloured one tile, and had to recolour with orange. The two-coloured squares are not so great, I think?
Using acrylics, I painted over the top which brightened it. However the geometry is very off, with the squares quite different sizes.
I’m not wild about the colours either …