Also update the README banner so that the background grid lines scale more reliably to different screen PPI. PiperOrigin-RevId: 473598837 Change-Id: I43434b35333714922128f8fd625aa6eb62521a7f
PiperOrigin-RevId: 450374687 Change-Id: Ie3225a46ce095fc28ae8e63c326a640261f562bb