Map text colour

[low_bidder]

CHR$ codes are part of the International standards. IIRC, the Brits started them pre-WW2 as teletype controls. Telling the printer when to move the paper up and the print head back to the left. I think. I might have them confused with something else. Any way most modern markup languages (GUI's like Windows and HTML) had their beginnings in teletype controls.
They in turn go back to the typewriter, which was invented in the late 19th century. The problem of getting a machine to put a particular mark in a precise place on a sheet of paper was worked out and standardized long ago.
When computer came along right before WW2 ( excluding Babbage and his calculating machine as well as the use of punch cards to 'program' looms) no one wanted to spend the time reinventing the wheel so the teletype codes were expanded to fit more modern ( to them ) applications. Then when a TV was hooked up to a computer the computer had to have some way to make things appear on the TV and make them appear in the correct place, so the control codes were expanded again. One assumes in another few decades, screens will not be 'screens' but reserved places in space where images in 3-D that react to the observer reside. That will require yet another expansion of the Control codes.
That is why I was surprised when the control code didn't work. It might and I could have left off the symbol that told the program that I was entering a control code. I'll try it again with the $ in front AND back. Standard is Where-What and Microsucks uses the old Tandy convention of What-Where.