玻璃棱镜彩虹折射图标

A macOS app icon. A squircle shape with smooth continuous rounded corners, centered on white canvas with padding — occupying about 80% of the canvas. Flat front face, slight edge thickness, soft drop shadow beneath. The squircle itself IS a solid block of optical glass — the entire surface has a cool translucent crystal quality with subtle internal refraction. A beam of white light enters from the upper-left edge...