how to change cyan to black

Signed-off-by: Nico Schottelius <nico@wurzel.schottelius.org>

blog/change-colour-for-ls-to-work-with-bright-terminal-background.mdwn

@@ -0,0 +1,88 @@
+[[!meta title="How to change the colour of ls to work with bright terminal backgrounds"]]
+
+## Introduction
+
+I am using [rxvt-unicode](http://software.schmorp.de/pkg/rxvt-unicode.html)
+as my terminal and prefer to use a bright background due to better
+readability in the sun.
+
+I have tried various colour themes
+(including
+[solarized](http://ethanschoonover.com/solarized) and
+[solarized-light](https://github.com/yangzetian/xresources-color-solarized-light),
+but was never satisfied, because of changes
+they make to existing colour configurations for applications
+like mutt, alot or irssi.
+
+I am essentially using black as the foreground colour and
+LightYellow2 as the background colour at the moment (which I inherit
+from some very old xterm + [[!fvwm]]2 settings).
+
+## Motivation
+
+The problem with my current setup is that symbolic links are
+show in **cyan** by ***ls*** on my system and thus are pretty much
+unreadable, as you can see:
+
+[[!img urxvt-before.png alt="urxvt with unreadable cyan colour"]]
+
+## The solution
+
+As the problem mainly arises by the use of ls, I initially thought
+about modifying the **LS_COLORS** variable. However, as I frequently
+login to servers that are variable does not effect the colour output 
+on the servers (and modifying AcceptEnv on all servers is also not
+realistic).
+
+As I do not want to have cyan output on my LightYellow2 background
+at all, I thought about changing the colour cyan to black.
+
+I found a nice colour table on [[!gentoowiki Rxvt-unicode#Color_theme]],
+with description of colour number to name:
+
+    !black
+    *color0:  #251f1f
+    *color8:  #5e5e5e
+    !red
+    *color1:  #eb4509
+    *color9:  #eb4509
+    !green
+    *color2:  #94e76b
+    *color10: #95e76b
+    !yellow
+    *color3:  #ffac18
+    *color11: #ffac18
+    !blue
+    *color4:  #46aede
+    *color12: #46aede
+    !magenta
+    *color5:  #e32c57
+    *color13: #e32c57
+    !cyan
+    *color6:  #d6dbac
+    *color14: #d6dbac
+    !white
+    *color7:  #efefef
+    *color15: #efefef
+
+
+## The result
+
+So in the end, only the following entries in .Xresources are
+required to make cyan symbolic links readable by changing
+cyan to black:
+
+    URxvt.background: LightYellow2
+    URxvt.foreground: black
+    URxvt.color6: black
+    URxvt.color14: black
+
+[[!img urxvt-after.png alt="urxvt with cyan changed to black"]]
+
+## SEE ALSO
+
+* [Terminal Colours](http://ciembor.github.io/4bit/)
+* [[!archwiki X_resources]]
+* [[!archwiki Rxvt-unicode]]
+
+[[!tag terminal unix urxvt]]

shortcuts.mdwn

@@ -43,3 +43,6 @@
 * [[!shortcut name=munin desc="Munin" url="http://munin-monitoring.org/"]]
 * [[!shortcut name=collectd desc="Collectd" url="https://collectd.org/"]]
 * [[!shortcut name=ganglia desc="Ganglia" url="http://ganglia.info/"]]
+* [[!shortcut name=fvwm desc="fvwm" url="http://www.fvwm.org/"]]
+* [[!shortcut name=archwiki desc="%s in Arch Linux Wiki" url="https://wiki.archlinux.org/index.php/%s"]]
+* [[!shortcut name=gentoowiki desc="%s in Gentoo Wiki" url="https://wiki.gentoo.org/wiki/%s"]]