nextcloud-server/core/templates/filepicker.html

<div id="{dialog_name}" title="{title}">
	<span class="dirtree breadcrumb"></span>
	<input type="checkbox" class="hidden-visually" id="picker-showgridview" checked="checked" />
	<label id="picker-view-toggle" for="picker-showgridview" class="button icon-toggle-filelist"></label>
	<div class="filelist-container">
		<div class="emptycontent">
			<div class="icon-folder"></div>
			<h2>{emptytext}</h2>
		</div>
		<table id="picker-filestable" class="filelist list-container view-grid">
			<thead>
				<tr>
					<th id="headerName" class="column-name">
						<div id="headerName-container">
							<a class="name sort columntitle" data-sort="name">
								<span>Name</span>
								<span class="sort-indicator hidden icon-triangle-n"></span>
							</a>
						</div>
					</th>
					<th id="headerSize" class="column-size">
						<a class="size sort columntitle" data-sort="size">
							<span>Size</span>
							<span class="sort-indicator hidden icon-triangle-n"></span></a>
					</th>
					<th id="headerDate" class="column-mtime">
						<a id="modified" class="columntitle" data-sort="mtime">
							<span>Modified</span>
							<span class="sort-indicator hidden icon-triangle-n"></span></a>
					</th>
				</tr>
			</thead>
			<tbody>
				<tr data-entryname="{filename}" data-type="{type}">
					<td class="filename"
						style="background-image:url({icon})">{filename}
					</td>
					<td class="filesize"
						style="color:rgb({sizeColor}, {sizeColor}, {sizeColor})">
						{size}
					</td>
					<td class="date">{date}</td>
				</tr>
			</tbody>
		</table>
	</div>
</div>