Triangle Minimize Window 3 is a line-style Icon from Material Pro Line set.

The Triangle Minimize Window 3 icon shows a rounded window outline with a diagonal arrow directed inward toward the lower-right. Drawn in the line style on a 24px grid, its bold geometric strokes keep the symbol clear in compact interfaces. Use it for minimize-window controls, responsive layouts, desktop app toolbars, and browser interface actions. It belongs to Material Pro Line set in the Streamline Material family.