Build one mobile app icon around the Central Symbol. Use a standard rounded-square icon shape with a full-bleed background in the Primary Color and no inner border or frame. Render the symbol in the Secondary Color, centered and filling roughly 60 to 70 percent of the icon with generous, even padding. Keep the mark immediately legible at 48 pixels, using bold geometric shapes, a confident silhouette and clean edges. Use a strictly flat style with no glossy effects, tiny details, texture or extra text. Limit the icon to the Primary Color, Secondary Color and white. Show the finished icon according to the Presentation, with a soft natural shadow and plenty of surrounding space. Do not include other icons, logos, watermarks or labels.
Use these details:
Central Symbol: "a bold checkmark enclosed by a simple circle"
Primary Color: "deep green"
Secondary Color: "white"
Presentation: "the icon alone, centered on a plain warm-gray background"
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.