_type&gt;()(red,green,blue);</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;}</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;}   <span class="comment">// namespace detail</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class