Idea of Closed Window Icon
This icon is depicting a window. The object is rectangular shaped with sharp corners and is bordered. There is a clear 'T' shape in the center of the window to distinguish the individual panes of glass.
This Closed Window icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.