ohif-viewer/Packages/viewerbase/client/components/basic/hidingPanel/hidingPanel.html

<template name="hidingPanel">
    <div class="hidingPanel {{#if isPinned}}pinned{{/if}}">
        <div class="iconContainer">
            {{#unless isPinned}}
            <i class="arrowIcon fa fa-angle-double-right"></i>
            {{/unless}}
            <button class="btn btn-sm btn-primary btnPin {{#if isPinned}}active{{/if}}">
                <i class="fa fa-thumb-tack"></i>
            </button>
        </div>
        <div class="hidingPanelContent">
            {{#if studyDateIsShown}}
                {{> studyDateList}}
            {{/if}}
            <div class="studyBrowserContainer">
                {{> studyBrowser}}
            </div>
        </div>
    </div>
</template>