eader&nbsp;:&nbsp;<span class="constructor">Misc</span>.<span class="constructor">Color</span>.setting&nbsp;<span class="constructor">Clflags</span>.env_reader<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;error_style&nbsp;:&nbsp;<span class="constructor">Misc</span>.<span class="constructor">Error_style</span>.setting&nbsp;option&nbsp;<span class="constructor">Stdlib</span>.ref<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;error_style_reader&nbsp;:&nbsp;<span class="constructor">Misc</span>