The Format H1 icon shows an uppercase H beside a lowered 1, representing a first-level heading. Drawn in the rounded line style on a 24px grid for clear, consistent UI scaling. Use it for rich-text editors, heading-level menus, document formatting, and typography controls. It belongs to Rounded Line - Streamline Material set in the Streamline Material family.
Same category - from the Rounded Line - Streamline Material