From thomas.schraitle@suse.de Sat Apr 21 15:08:18 2007
From: Thomas Schraitle <thomas.schraitle@suse.de>
To: doc@lists.opensuse.org
Subject: Re: [opensuse-doc] How to make color background in LfL Docbook XML ?
Date: Sat, 21 Apr 2007 17:11:24 +0200
Message-ID: <200704211711.24559.thomas.schraitle@suse.de>
In-Reply-To: <7fac565a0704201744g59da0602g63b9b67943a6dce7@mail.gmail.com>
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Hi Alexey,

On Samstag, 21. April 2007, Alexey Eremenko wrote:
>
> How to make color background in LfL Docbook XML ?
>
> This would be great for this:
> http://www.virtualbox.org/wiki/Guest_OSes

Use a processing instruction (PI) with the target dbhtml, for example:

  <?dbhtml bgcolor="RGB_COLOR_CODE"?>

Replace RGB_COLOR_CODE with a RGB value or a color name, for 
example "#DDAAFF" or "red". Depending where you place the PI you can set 
the background color for a cell only or for a row:

<table>
  <title>...</title>
  <tgroup cols="2">
    <tbody>
     <row>
       <entry><?dbhtml bgcolor="#96a7ca"?>Cell with background</entry>
       <entry>Cell with standard background</entry>
     </row>
     <row><?dbhtml bgcolor="#EEEEEE" ?>
       <entry>Cell 1/entry>
       <entry>Cell 2</entry>
     </row>
    </tbody>
  </tgroup>
</table>

Always keep legibility in mind if you insert colors. The above PI works 
for HTML only. You need an additional PI for PDF:

 <?dbfo bgcolor="RGB_COLOR_CODE"?>

Please be careful with colors in PDF as they are printed in grayscale 
normally. Some combinations of background and foreground colors lead to 
almost unreadable text. 

Probably the safest way is to avoid it and try to add an additional column 
with further explanations and a legend/caption or use table footnotes.


Bye,
Tom

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