I painted the top the same blue as the front, and then I washed a dark glaze over it to further age it. I used custom chalk paint for this. Actually a combo - ASCP in Pure White, and Reetiqued chalk paint in dark blue and deep red. :) I used the grout recipe.
UPDATE: I have since bought a big box of DAP plaster of paris and I can say hands down that it gives a smoother finish than my grout did.
I used regular painters tape for my lines. Taping the dresser out definitely takes the loooongest amount of time. Fortunately I was painting in my kitchen (Mr. Chuckles LOVES when I do that!) so my pal, the tv, was able to keep me amused during the dry times.
I did get some bleedthrough, but I use little sharp edged artists brushes to tidy everything up.
Overall I'm pretty happy with it! And so is the 12 year old One Direction fan who's room in now resides in. Just below their hearthrobby poster!