Format H4 Fill is a solid-style Icon from Rounded Fill - Material Symbols set.

The Format H4 Fill icon shows a bold capital H beside the numeral 4, with rounded terminals and thick solid forms. Drawn in the solid style on a 24px grid, its simple geometry stays legible in text-formatting controls. Use it for heading-level selection, rich-text editors, typography toolbars, document formatting, and content-management interfaces. It belongs to Rounded Fill - Material Symbols free set in the Google Material family.