@leslietownes You're right! Hah!
It is amazing how attention and the mind work, and habituation (in terms of familiarity): What we see, what is there. I've also always found optical illusions fascinated. Cognitive psychology is loaded with studies on perceptual biases. And how context affect such biases, in some cases.
^^^^ (related to my failure, earlier, to see the two P's in the search phrase.)
With an R, we'd have PURPLE, SURPLUS, PURPOSE,
INDULGES (but entirely possible already mentioned).
With one T, we'd have DELEGATION, DELEGATE