public String toString()
	{
		String ret = "";
		if( colortype == COLORTYPERGB )        // rgb
		{
			ret = " rgb=" + colorstr;
		}
		else if( colortype == COLORTYPEINDEXED )    // indexed
		{
			ret = " indexed=" + colorval;
		}
		else if( colortype == COLORTYPETHEME )    // theme
		{
			ret = " theme=" + colorval;
		}
		if( tint != 0 )
		{
			ret = " tint=" + tint;
		}
		return ret;
	}