Top frame paint color?

The white frame may have been part of a special dealer package... Or a seasonal/regional color. Lots of those were done in the day.

In Milwaukee we had "White Hat Specials"... Since corporate ads touted Dodge as " The Good Guys with White Hats" it was a take off on that.

Most of those cars were white (not a common color) or had a white vinyl top...maybe a white interior.

Not sure about ragtops.