ds6 wrote number 1s all over bedroom wall

[nicolaleavethemkidsalone]

He's obsessed with numbers with number one being a favourite.
He often writes number 1s on his body but early this morning he decided to decorate his bedroom instead.
where do i start? repaint?

btw he's on the spectrum with limited understanding.

Another suggestion - if he likes numbers so much, can you decorate his room with number decals. The removable ones that peel off easily?