Back in the day, for people who spent many hours each day in front of a 'display': 1. People using TTY's used black ink on very-light-yellow roll paper, or 2.

Back in the day, for people who spent many hours each day in front of a 'display': 1. People using TTY's used black ink on very-light-yellow roll paper, or 2. Those lucky enough to have ADM-3 VDT's often chose light green or light orange on black. Just sayin. e.g. https://en.wikipedia.org/wiki/VT220#/media/File:DEC_VT220_terminal.jpg https://en.wikipedia.org/wiki/VT220#/media/File:DEC_VT220_te...