Sableline

App icon: an abstract number brand mark called Sableline — a numeral with punch. Centered glyph: a bold numeral 28 mark, rendered in #ffffff. retro pixel-art style with chunky visible pixels and a coarse mosaic grid, smooth linear gradient background from #1e1b4b to #4338ca at 145°. Details: subtle film-grain noise texture across the background; a subtly embossed glyph with a light top edge and shaded base. 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 Sableline — a numeral with punch. Centered glyph: a bold numeral 28 mark, rendered in #ffffff. retro pixel-art style with chunky visible pixels and a coarse mosaic grid, smooth linear gradient background from #1e1b4b to #4338ca at 145°. Details: subtle film-grain noise texture across the background; a subtly embossed glyph with a light top edge and shaded base. 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.