Laundry room

Preston and Hayden just finished tiling the laundry room, thank heaven!  Our stinking cat Bella loved to pee on the carpet and anything laying on the carpet in there. The litter box of course was 2 inches away but she preferred the comfort of the floor I guess.  Not sure why, she is mostly an inside cat but she does go outside sometimes. She would potty outside and come in and use the box like a normal cat, but out of the blue BAM just go on the floor. WTH? It got to the point where it was unbearable. I would vacuum, keep everything off the floor, scrub the floor but she would still do it and it made the side entrance like the walk of nastiness. So when they finished tiling the floor, her happy butt goes in there to walk around and sniff. She was clueless, where do I pee now? GRRR stinking cat.  Now all we lack is painting the walls and refinishing a few of the boards in there. Still thinking of a color to paint it....what is a good laundry room color??? hmmmm.