OT, this is way off topic, I think, except it takes place in the home.
But I've googled till the cows come home and I don't know who else to
ask. And image googled too.

There used to be on cartons of ice cream and maybe other stuff with a
lot of milk in it, a little logo, about 1/4" high, a capital D in
deep blue, filled with blue, except for a 5-pointed white star in the
middle, filled with white.

I always thought it was a trade group like the Dairy Council, but they
have a different logo, at least now, and I can find no record of this
symbol, though maybe I don't know how to look.

And it's not on any ice cream anymore. or anything, afaict.

Does anyone remember it? Do you know what it stood for? Anything
related to it.

Thanks.