m-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">The context class to give the titlebar - can be one of hx-positive, hx-negative, hx-warning, hx-info. If undefined is supplied the titlebar will return to its normal color scheme. </div></div></div></div></div></div><div class="qm-api-group qm-api-returns-group"><div class="qm-api-group-header qm-api-returns-group-header qm-header-font">Returns</div><div class="qm-api-item qm-api-javascript-returns qm-api-collapsible"><div cl