hor"></a><code><span><span class="keyword">val</span> set_color : <span>bool <span class="arrow">&#45;&gt;</span></span> unit</span></code></div><div class="spec-doc"><p><code>set_color true</code> turns on the colour; <code>set_color false</code> turns it off.</p></div></div><h6 id="log-functions"><a href="#log-functions" class="anchor"></a>Log functions</h6><div class="odoc-spec"><div class="spec value anchored" id="val-debug"><a href="#val-debug" class="anchor"></a><code><span><span class="keyword">val</