If the Help file uses color, the RTF file must also define a color table group to specify the individual colors. Unlike font entries in the font table, color entries in the color table do not specify a color number. Instead, the RTF reader assumes that the first color defined is color zero, the second color is color one, and so on. The following example defines the standard 16 colors in the Windows palette:
{\colortbl;
\red0\green0\blue0;
\red0\green0\blue255;
\red0\green255\blue255;
\red0\green255\blue0;
\red255\green0\blue255;
\red255\green0\blue0;
\red255\green255\blue0;
\red255\green255\blue255;
\red0\green0\blue127;
\red0\green127\blue127;
\red0\green127\blue0;
\red127\green0\blue127;
\red127\green0\blue0;
\red127\green127\blue0;
\red127\green127\blue127;
\red192\green192\blue192;
}