godot/scene/theme/icons/grid_toggle.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path fill="#b2b2b2" fill-opacity=".65" d="M3 0v3H0v2h3v4H0v2h3v3h2V5h9V3h-3V0H9v3H5V0z"/><path fill="#e0e0e0" d="M11 6.62c-1.747 0-3.957 1.344-4.752 3.936a.683.69 0 00-.004.394C7.012 13.665 9.292 14.9 11 14.9c1.708 0 3.988-1.235 4.756-3.95a.683.69 0 000-.382C15.004 7.955 12.746 6.62 11 6.62zM11 8a2.733 2.76 0 012.733 2.76A2.733 2.76 0 0111 13.52a2.733 2.76 0 01-2.733-2.76A2.733 2.76 0 0111 8zm0 1.38a1.367 1.38 0 00-1.367 1.38A1.367 1.38 0 0011 12.14a1.367 1.38 0 001.367-1.38A1.367 1.38 0 0011 9.38z"/></svg>