I agree. The github page links to a Google colab page though(https://colab.research.google.com/drive/1WJfLJH0mBzXGGeRfvQaxNjQxQaAECwYj?usp=sharing https://colab

I agree. The github page links to a Google colab page though(https://colab.research.google.com/drive/1WJfLJH0mBzXGGeRfvQaxNjQxQaAECwYj?usp=sharing https://colab.research.google.com/drive/1WJfLJH0mBzXGGeRfvQa...) where the first image has a diagonal grid with much less frequent lines. This version of the illusion is more compelling to me.