you mean the white bump on top of the purple brick that should not be there? well, i saw that as a marking on the brick because if it was a bump it would be purple. and on the left side whether that looks right or not depends on the angle.

(we are nitpicking the nitpicking, it's nits all the way down. my last line in the previous comment was also based on the image. to shatter your steelman, picking on the illustration of the article that is just there to add some color is at best like a code review complaining about style or indenting. with endless bikeshedding opportunities, not something a code review should be focusing on. if the picture were of central importance then that would be different. btw, i am not complaining, i am having good natured fun here)