The Insert Top Right Fill icon shows a large rounded square at the upper right, three short horizontal bars to its left, and two long bars below. Drawn in a rounded solid style on a 24px grid so its filled shapes remain clear in compact interfaces. Use it for insert actions, layout editors, content blocks, and formatting controls. It belongs to Rounded Fill - Streamline Material set in the Streamline Material family.
Same category - from the Rounded Fill - Streamline Material