The End Cap Square Fill icon shows a filled horizontal block with rounded left corners and a central circular cutout opening into a right-side notch. Drawn in the solid style on a 24px grid so its bold silhouette stays clear at small sizes. Use it for end caps, connectors, tabs, and interface controls. It belongs to Outlined Fill - Streamline Material set in the Streamline Material family.
Same category - from the Outlined Fill - Streamline Material