What is "colorcast"

Usage examples of "colorcast".

I put some Plymouth on ice for myself, drew the thinner, semiopaque drapery across the big windows, and found Walter Cronkite on a colorcast speaking evenly, steadily, reservedly of unspeakable international disasters.

I put some Plymouth on ice for myself, drew the thinner, semiopaque draperie across the big windows, and found Walter Cronkite on a colorcast speaking evenly, steadily, reservedly of unspeakable international disasters.