The Problem Fill icon shows a rounded rectangle containing an exclamation mark beside two horizontal bars. Drawn in the solid style on a 24px grid, its filled shapes keep the symbol clear and consistent in compact interfaces. Use it for problem alerts, issue states, validation messages, error summaries, and troubleshooting controls. It belongs to Outlined Fill - Streamline Material set in the Streamline Material family.
Same category - from the Outlined Fill - Streamline Material