Lyraline

App icon: an abstract number brand mark called Lyraline — counters, versions, launch days. Centered glyph: a bold numeral 21 mark, rendered in #67e8f9. die-cut sticker style, the glyph wrapped in a thick white outline with a soft shadow, hard diagonal split background, #0c4a6e on one half and #164e63 on the other. Details: a flat 45-degree long shadow cast by 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 number brand mark called Lyraline — counters, versions, launch days. Centered glyph: a bold numeral 21 mark, rendered in #67e8f9. die-cut sticker style, the glyph wrapped in a thick white outline with a soft shadow, hard diagonal split background, #0c4a6e on one half and #164e63 on the other. Details: a flat 45-degree long shadow cast by 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.