I found this piece of code in lightgallery.js
template = '<div class="lg-outer ' + this.s.addClass + ' ' + this.s.startClass + '">' +
'<div class="lg" style="width:' + this.s.width + '; height:' + this.s.height + '">' +
'<div class="lg-inner">' + list + '</div>' +
'<div class="lg-toolbar group">' +
'<span class="lg-close lg-icon"></span>' +
'</div>' +
controls +
subHtmlCont +
'</div>' +
'</div>';
but nothing change if i modify it.