Bar chart fill

<svg class="bi bi-bar-chart-fill" width="1em" height="1em" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
  <rect width="4" height="5" x="1" y="10" rx="1"/>
  <rect width="4" height="9" x="6" y="6" rx="1"/>
  <rect width="4" height="14" x="11" y="1" rx="1"/>
</svg>