I was wondering if anyone would pick up on the fact that I just pulled that dress out of a wardrobe in the Grunt household. Good eye! Is that what she's wearing in her icon in the game, normally? My game is a bit odd in that regard, and Lyla keeps changing every time her ghost appears in Olive's cemetery. I'm not sure what causes that.

The choice of dress was intentional. Perhaps Buzz bought her a dress just like Lyla used to wear, or it was just a coincidence. It ties into her intentions of becoming a mother to the Grunt boys.