Design one mobile app icon shown alone, centered on a plain light background with a soft, subtle shadow. Use a standard iOS and Android rounded-square silhouette with a full-bleed background in the Primary Color and no inner border or frame. Place the Central Symbol in the exact center, filling roughly 60 to 70 percent of the icon with even padding. Draw it as a bold continuous single-line mark using the Secondary Color, with a confident, readable silhouette that remains clear at 48 pixels. Keep the design flat and restrained, with smooth curves, consistent stroke weight, and no extra symbols, decorative details, labels, or text beyond the single letter. Use only the specified colors plus white if needed, with clean edges and a simple app-store-ready presentation.
Use these details:
Central Symbol: "A"
Primary Color: "warm white"
Secondary Color: "black"
Using your own logo, product or face? Attach it in the chat and say which of the details it replaces.
Your result will come out close to the example rather than identical to it. Change the details to make it yours.
