As a non NT i need to answer (If you don't mind ... too late ).
I used to love that game. Patterns and colours, patterns and colours .. It is also a useful tool as then you are not connecting the patterns, colours and dots IRL .. *sigh* Lol
“I made you take time to look at what I saw and when you took time to really notice my flower, you hung all your associations with flowers on my flower and you write about my flower as if I think and see what you think and see—and I don't.”
― Georgia O'Keeffe