private function buildColorTags ()
    {
        $this->aColorTags = array();
        foreach ($this->aConfig['colors'] as $sRawName => $sSequence) {
            $sName = '{' . $this->aConfig['color_tag_prefix'] . $sRawName . '}';
            $this->aColorTags[$sName] = $sSequence;
        }
    }