What is it?  Well, to take inspiration from billboards,

I’d say “watch this space.”

Or from t-shirts . . . . “keep calm and pay attention.”

I think the red and yellow here belongs to Jane A. Bouchard, seen here almost a decade ago, but

for the alabaster white, stay tuned.  Come on back soon.  Pay attention.  Stay focused.  Be alert.

All photos today thanks to Lisa Kolibabek, whose previous contributions can be seen here.