Amber and green on black were considered easier on the eyes than white on black in the Neolithic .TXT era. It was a rare treat when I got a Page White TTL Montor for my SignMaking Workstation back in the day.

On a computer bundled with MacPaint, only Black on almost white for the first available WYSIWYG GUI experience made any sense at all. Generic CAD and CorelDraw worked fine with a Hercules Graphics Card driving on an Amber CRT and was much better for Object Oriented Graphics than were Macintosh display resolution of the era for graphics , but not nearly as nice looking.

Additional suggestions for POP!

Put'em on shelves with each being mirroring sections of the singleton's desktop like you said. But simplify it by having each pick up and take up the moving position of the enlarged cursor, with the proper delays for movement of the cursor over the sparse array. Each member of the chorus ignoring the rest of the Band leader's screen content while playing individual musical note alarm sounds, mimicking a Synthesizer?

Gonzo bonus points for having the Band Leader mimic a player piano by ImageBanging musical notation on fanfold paper . . .

. . . and then playing it back via ThunderScan.