When did I change my layout?

I just noticed that my layout has changed and I don't remember doing it. Guess it must have been one of those times I was messing with everything.

I need to get rid of my blue curtains in the bedroom. Memphis woke up and climbed in bed with us, gave me a hug and kiss and was out. I was just going to put her back in bed and when I went to pick her up I noticed her face was all blue. Scared the crap out of me, I almost screamed. I put my hand on her to make sure she was breathing and freak out again because she breathes so slow. After I calmed down it hit me that with the tv and computer on the blue of the curtains was shining on her face.