expand -c description in man page

1 files changed, 33 insertions, 2 deletions

diff --git a/uxd.rst b/uxd.rst
index 7fc1800..eddbd4f 100644
--- a/uxd.rst
+++ b/uxd.rst
@@ -77,12 +77,43 @@ as *K*, *M*, and *G* for power-of-10 based (e.g. *1K* is 1000 bytes).
 
 -c nnnnn
   Set the colors to use. Must be 2 to 5 digits, from 0 to 7. These are
-  standard ANSI colors. The first 2 are the alternating colors for
-  normal characters, the 3rd and 4th (optional) are the alternating color for non-printable
+  standard ANSI colors:
+
+  0
+    black
+
+  1
+    red
+
+  2
+    green
+
+  3
+    yellow
+
+  4
+    blue
+
+  5
+    purple
+
+  6
+    cyan
+
+  7
+    white
+
+  The first 2 digits are the alternating colors for
+  normal characters, the 3rd and 4th (optional) are the alternating colors for non-printable
   and space characters, and the 5th (optional) is for invalid UTF-8
   sequences. Default: **23561**. This option also disables a prior **-m**
   option.
 
+  Note that the default color set doesn't include white or black:
+  usually one of these is the terminal's background
+  color. Also, it avoids blue, because blue text is hard to read on
+  many terminals.
+
 .. colors (2 to 5 digits, 0 to 7).
 
 -d data