From Roger Ebert's review in1967:
Miss Day has about two dozen outfits in “Caprice,” and the great thing is, all of the sets are in coordinated colors. She wears a black-and-white checked dress in a black-and-white checked room and a blue-on-blue in a blue-on-blue room, and sometimes only her voice lets you know she’s there.
What a way to make a movie!