Editing the palette.mac File on a UNIX Workstation

You can either select colors to display from those available in the RGB database on your system (type showrgb to see list of color names and RGB values), or add custom RGB values to the file /usr/lib/X11/rgb.txt and then recompile the RGB database.

 

To define a new color in your palette.mac file, use the following format:

 

COLOR_NAME COLOR_INDEX

 

Where the COLOR_NAME is a color you have identified from your rgb.txt file, and the COLOR_INDEX is an integer index you assign to the color.

 

Example:

 

rgb.txt contains these colors (their RGB values precede the color name):

 

240 230 140 khaki
240 255 255 azure

 

Add these lines to palette.mac:

 

khaki 33
azure 34

 

The default palette.mac file on UNIX workstations contains:

 

Black

0

Indian_red

9

Light_blue

18

sky_blue

27

Red

1

Spring_green

10

Thistle

19

slate_blue

28

Yellow

2

Sea_green

11

steel_blue

20

Medium_blue

29

Green

3

Navy_blue

12

cornflower_blue

21

Firebrick

30

Cyan

4

dark_slate_grey

13

Dark_slate_blue

22

Light_grey

31

Blue

5

Violet

14

Gold

23

Cadet_blue

32

Magenta

6

Wheat

15

Goldenrod

24

 

 

White

7

Grey

16

Dim_grey

25

 

 

Violet_red

8

Orange

17

Navy

26