linux-presets/gui/gnome/icons/WhiteSur-dark/actions/symbolic/object-columns-symbolic.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M2 2h1v12H2zm6 0h1v12H8zm6 0h1v12h-1z" style="fill:#dedede;stroke-linecap:round;stroke-linejoin:round;stop-color:#000"/></svg>