Use these figures for changing colors
(thanks to WA2N for this list)

;                     Back- Fore-
; Color         Value grnd? grnd?
; ---------     ----- ----  ---- 
; BLACK           0    Yes   Yes 
; BLUE            1    Yes   Yes 
; GREEN           2    Yes   Yes 
; CYAN            3    Yes   Yes 
; RED             4    Yes   Yes 
; MAGENTA         5    Yes   Yes 
; BROWN           6    Yes   Yes 
; LIGHTGRAY       7    Yes   Yes
; DARKGRAY        8    No    Yes
; LIGHTBLUE       9    No    Yes
; LIGHTGREEN     10    No    Yes
; LIGHTCYAN      11    No    Yes
; LIGHTRED       12    No    Yes
; LIGHTMAGENTA   13    No    Yes
; YELLOW         14    No    Yes
; WHITE          15    No    Yes
