Go on, guess.
Okay, I'll tell. Catherine's L'Art de Lire work for today was to colour a little story in the text that we've been reading for the last few days (I started her at Level 1 which is sort of geared to younger grades so yep, there's some colouring). That piece of paper is what she tested the colours on before she used them. She had to determine the proper shades of red, brown, grey, etc. before she would use them on anything.
It took her an hour to colour the very simple illustrations.
I don't know why Mimi la Souris warranted such care and attention to detail but shucks, it was one of those times where I just felt a sense of wonder for my daughter.