My-distro-configs-devuan/themes/Fluent-round-compact/gtk-3.0/assets/scalable/small-checkbox-checked-symbolic.svg

<svg width="32" height="32" xmlns="http://www.w3.org/2000/svg"><path d="M6 2C3.784 2 2 3.784 2 6v20c0 2.216 1.784 4 4 4h20c2.216 0 4-1.784 4-4V6c0-2.216-1.784-4-4-4Zm19.297 7.297 1.406 1.406L12 25.422l-6.703-6.719 1.406-1.406L12 22.578 25.296 9.297z" style="stroke-width:2;paint-order:stroke fill markers"/></svg>