So as usual I was wasting my time watching online videos when suddenly D:
A wild mystery appeared
During one of the videos here Matt explains that there's an easter egg in his book. A small image is hidden in a number.
Naturally this became a thing at 12 o'clock in the night since I didn't feel like doing anything else.
Here is the result, the hidden image (in green and black because of reasons)
I've included the poorly coded script, no judgements. I was tired and wrote it in 10 minutes. With the wrong number thanks to this person :(
Props to Ben Farrant for copy pasting correctly