Umberlab

App icon: an abstract letterform brand mark called Umberlab — a bold monogram starting point. Centered glyph: a lowercase letterform mark of the letter s, rendered in #5908a6. die-cut sticker style, the glyph wrapped in a thick white outline with a soft shadow, smooth linear gradient background from #a855f7 to #d946ef at 120°. Details: a faint checkerboard pattern on the background; a soft drop shadow beneath the glyph. Requirements: square 1:1 canvas at 1024×1024, full-bleed background with no transparency, no text or wordmarks, no baked-in rounded corners or borders (the OS applies its own mask), glyph optically centered and contained within the central 66% safe zone so it survives the iOS squircle and Android circular launcher masks, crisp anti-aliased edges, high detail, professional app-store quality.

App icon: an abstract letterform brand mark called Umberlab — a bold monogram starting point. Centered glyph: a lowercase letterform mark of the letter s, rendered in #5908a6. die-cut sticker style, the glyph wrapped in a thick white outline with a soft shadow, smooth linear gradient background from #a855f7 to #d946ef at 120°. Details: a faint checkerboard pattern on the background; a soft drop shadow beneath the glyph. Requirements: square 1:1 canvas at 1024×1024, full-bleed background with no transparency, no text or wordmarks, no baked-in rounded corners or borders (the OS applies its own mask), glyph optically centered and contained within the central 66% safe zone so it survives the iOS squircle and Android circular launcher masks, crisp anti-aliased edges, high detail, professional app-store quality.