Present one single mobile app icon centered on a square 1:1 canvas, styled like a real App Store or Google Play icon. Use a smooth iOS-style squircle with comfortable rounded corners, filled according to the Color Palette. Place one bold, simple symbol based on the Icon Concept in the center, with a strong silhouette, crisp edges, and generous padding so it remains instantly readable at small sizes. Render it in the Style, using smart negative space and no extra objects, scenes, letters, or decorative details. Set the icon against a plain very light neutral background, with the icon occupying about 70 percent of the canvas width and a soft subtle drop shadow beneath it. Use the App Type as the design context. No device, hands, mockup, watermark, glow, sparkles, or external text.
Use these details:
App Type: "E-Signature App"
Icon Concept: "A continuous signature loop that finishes as a checkmark"
Style: "Flat icon design"
Color Palette: "Ink blue symbol on a white icon 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.
