Colors

color and color depth

> It seems that I can only use quite limited set of colors. Can you tell
> me how I can use more colors?

You don't mention what hardware or software you are using, so guessing that you have a Sun workstation of some kind, I suggest you trawl the archives for "framebuffer" and take a look at the man pages for m64config or a similar command, depending on your framebuffer type.

This will show you how to change your video setting, such as resolution, refresh rate and colour depth.

For now, I'll take a stab and guess that you are using netscape. If so, you should either start netscape after you've started all other clients, so they'll have first grabs on the colour map, or run netscape with the "-install" option and live with the colour switching.

If you give some more information, we may be able to help more.

Andrew J. Caines

color and color depth

Have you used xdpyinfo to verify that your hardware is capable of greater than 8bit colordepth? Is you're running older hardware, it probably isn't. If you're running a newer Sun, "man -k fbconfig" might be helpful.

If it's not hardware, it's probably software :-). Some applications, like Netscape, are notorious for hogging the colormap. Read the man pages for an "owncmap" flag to tell those apps to ask for a private colormap.

Paul R. Joslin

Private Colormap

> I tried to apropos owncmap, search for it in xterm man pages... etc, but still
> can't find it. So, please can somebody tell me how I can setup applications
> that hog the colormap to use their own private colormap? thanks!

There is no 'global' option for telling a X11 application to use its own colormap (cf. X11(7)). Unfortunately every program uses a different commandline switch for this purpose. For netscape it is '-install'.

Carsten

Xwin colors

Newsgroups: comp.unix.questions
Date: 2000/08/14

>Is there a way that I can know the foreground and background color
>of a specific xterm window?

Try xmag.

Quoting from the first paragraph of it description: The xmag program allows you to magnify portions of an X screen.

[snip] Pressing Button1 in the enlargement window shows the posi- tion and RGB value of the pixel under the pointer until the button is released.

Ken Pizzini

Xwin colors

> Try xmag...

Thanks Ken, you're really helpful.

As for the default xterm "gray" background color, in case anyone else wants to know, it is aeb2c3. try this:

xterm -bg \#aeb2c3 &

Xwin Colors

cmd:rgb

The Xwin comes with a predefined set of colors, liseted in the file rgb.txt

rgb uses the default color name database of usr/openwin/lib/X11/rgb.txt to builds a color name database in dbm format.

rgb file under X11R6

! $XConsortium: rgb.txt,v 10.41 94/02/20 18:39:36 rws Exp $
255 250 250             snow
248 248 255             ghost white
248 248 255             GhostWhite
245 245 245             white smoke
245 245 245             WhiteSmoke
220 220 220             gainsboro
255 250 240             floral white
255 250 240             FloralWhite
253 245 230             old lace
123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789
         1         2         3         4         5         6         7

— same version as that of openwin

color listing

$ head /usr/openwin/lib/X11/rgb.txt
! $XConsortium: rgb.txt,v 10.41 94/02/20 18:39:36 rws Exp $
255 250 250             snow
248 248 255             ghost white
...

List all colors

ls /usr/X11R6/lib/X11/rgb.txt
head !$ | cut -f 3 | tail +2

Found that each multi-word color have a corresponding one-word color version

$ grep '[[:alnum:]] [[:alnum:]]' -A 1 /usr/X11R6/lib/X11/rgb.txt | less
248 248 255             ghost white
248 248 255             GhostWhite
245 245 245             white smoke
245 245 245             WhiteSmoke
220 220 220             gainsboro
255 250 240             floral white
255 250 240             FloralWhite
253 245 230             old lace
253 245 230             OldLace
250 240 230             linen
250 235 215             antique white
250 235 215             AntiqueWhite
255 239 213             papaya whip
255 239 213             PapayaWhip
255 235 205             blanched almond
255 235 205             BlanchedAlmond
255 228 196             bisque
255 218 185             peach puff
255 218 185             PeachPuff
255 222 173             navajo white
255 222 173             NavajoWhite

one-word-version

awk 'NF==4 {print }' < /usr/openwin/lib/X11/rgb.txt

— print all one-word-version-of colors

awk 'NF==4 {print $4}' < /usr/openwin/lib/X11/rgb.txt
awk 'NF==4 {printf $4 " "}' < /usr/openwin/lib/X11/rgb.txt

— print all one-word-version-of color names only

ls /usr/X11R6/lib/X11/rgb.txt
head !$ | grep -iv grey | awk 'NF==4 {printf $4 " "}' | fold -s -w 72 | ssur '\\' | sed 's/"\\/" \\/g'
^head^cat^ | xsel -c

— grey is just synonym of gray

awk 'NF==4 {printf "'\''#%02x%02x%02x'\'' %s\n", $1, $2, $3, $4 }' < /usr/openwin/lib/X11/rgb.txt

— print all one-word-version-of color and its correspondent hex value

colors which are suit for backgrounds

AntiqueWhite
PapayaWhip
cornsilk
CornflowerBlue
SlateBlue
RoyalBlue
DodgerBlue
DeepSkyBlue
SkyBlue
SteelBlue
LightBlue
CadetBlue
MediumAquamarine
SeaGreen
MediumSeaGreen
LightSeaGreen
goldenrod
DarkGoldenrod
RosyBrown
IndianRed
SandyBrown
DarkSalmon
LightCoral
maroon
MediumVioletRed
plum