mixin material-symbol(icon, extraClass = null) - extraClass = extraClass ? ' ' + extraClass : '' span(aria-hidden='true' translate='no' class='material-symbols' + extraClass)&attributes(attributes) | #{icon} mixin material-symbol-outlined(icon, extraClass = null) - extraClass = extraClass ? ' ' + extraClass : '' +material-symbol(icon, 'material-symbols-outlined' + extraClass)&attributes(attributes) mixin material-symbol-rounded(icon, extraClass = null) - extraClass = extraClass ? ' ' + extraClass : '' +material-symbol(icon, 'material-symbols-rounded' + extraClass)&attributes(attributes)