Started designing my level today, here's a look at what I've done so far. I'm going for a celebration theme.
Scrapped my idea of line guides, since getting the stars/normal FG/line guides to work together was a total pain.
BlackMageMario: I changed the lime green to a darker, bluer color. I want it to look like only a little bit of snow fell, so a little bit of green is shown.
Side note: Is it possible to get the Map16 priority to work in a vertical level? I plan on using the canvases later on, and Mario can't go behind them. Not sure why the original game did this.