Nested Square Icon - UI Container Symbol for Embeds and Layouts #3431386 (License: Personal Use)

The icon features two concentric squares-one outer frame and one inner square-rendered in solid black on white, suggesting containment, embedding, or modular layout structure. Its minimal geometric form ensures high legibility at small sizes and scalability across devices.

Used in design systems, CMS editors, or developer docs to denote embeddable widgets, iframe placeholders, or responsive layout zones; matches user intent seeking UI component assets or iconography references.