indeterminate-check-box-fill

<svg fill="currentColor" xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 -960 960 960"><path d="M250-452h461v-60H250v60Zm-70 332q-24 0-42-18t-18-42v-600q0-24 18-42t42-18h600q24 0 42 18t18 42v600q0 24-18 42t-42 18H180Z"/></svg>

<i class="ti ti-indeterminate-check-box-fill"></i>

ti ti-indeterminate-check-box-fill

<i class="ti ti-035947"></i>

ti ti-035947

<svg aria-hidden="true" focusable="false" fill="currentColor" xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 -960 960 960"><path d="M250-452h461v-60H250v60Zm-70 332q-24 0-42-18t-18-42v-600q0-24 18-42t42-18h600q24 0 42 18t18 42v600q0 24-18 42t-42 18H180Z"/></svg>

<svg aria-hidden="true" focusable="false" fill="currentColor" xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 -960 960 960"><path d="M250-452h461v-60H250v60Zm-70 332q-24 0-42-18t-18-42v-600q0-24 18-42t42-18h600q24 0 42 18t18 42v600q0 24-18 42t-42 18H180Z"/></svg>

https://cdn.jsdelivr.net/npm/@ticnob/icons@1/icons/indeterminate-check-box-fill.svg