A premium app icon for 'Nexus Hub'. A massive capital letter 'N' that fills almost the entire square space from edge to edge. The 'N' is built using overlapping ribbon-like segments with rounded ends. The style is advanced Glassmorphism: each segment is made of high-quality translucent frosted glass with realistic reflections, spectral highlights, and blurred background visibility through the material. There are four distinct segments, each with a unique vibrant color: deep indigo, electric sky-blue, bright sun-orange, and warm coral red. No repeating colors. Subtle drop shadows appear where the glass pieces overlap, creating a strong sense of 3D depth. Solid crisp white background for high contrast. Sleek, professional, modern tech aesthetic. Square icon shape.