una/studio/template/bp_cell.html

<div class="adm-bp-cell bg-white dark:bg-gray-900 border border-dashed border-black/20 dark:border-white/20 rounded-lg">
    <div id="adm-bpc-__id__" class="adm-bp-cell-cnt flex flex-col gap-2">
        <bx_include_auto:bp_blocks.html />
    </div>
</div>