void color (value) LINEATTR.C Level 1–3
 
int value  The IBM color number or mnemonic.
 
color number
color name
color mnemonic
0
Black
BLACK
1
Blue
BLUE
2
Green
GREEN
3
Cyan
CYAN
4
Red
RED
5
Magenta
MAGENTA
6
Brown
BROWN
7
White
WHITE
8
Dark Gray
DRK_GRAY
9
Light Blue
LGT_BLUE
10
Light Green
LGT_GREEN
11
Light Cyan
LGT_CYAN
12
Light Red
LGT_RED
13
Light Magenta
LGT_MAGENTA
14
Yellow
YELLOW
15
Bright White
BRT_WHITE
 
 
In addition to the above pure colors, you may employ the Tektronix dithered colors (50–174) or the GraphiC RGB colors (200 –447). We recommend using the GraphiC RGB colors since they include all the other color sets. 

To set the background color, see startplot().

After a call to color(), all lines will be drawn on the screen in the selected color. If you want your TKF file to remain 
totally compatible with a 4105 terminal, you must restrict yourself to using only the colors 0 –7.