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→Option 4: Screen Colour Selector
==== Option 4: Screen Colour Selector ====
# Create a subroutine which displays on the character display a list of colours available on the bitmapped display, one colour per line, with one of the colours names highlighted in reverse video (white on black). The user may use the up/down arrow keys to change the highlighted row. Return the user's selection as a number in the accumulator (A) register when they press Enter.
# Using this subroutine, get a colour from the user, then fill the bitmap display with this colour, and allow the user to select a different colour.
