Just a guess.
I recall the color scheme for Wimpy's or Wimpie's or Wimpee's or whatever it was, as being sort of a lot of orange, and a little bit of yellow--but no distinctive trademark, such as a figure or symbol.
The waiters were attired as if employed by an expensive French restaurant, but the prices were pretty much in line with then-McDonald's prices.
One wonders if they still exist, these hamburger joints.