Bold icons use filled shapes for instant recognition, making them perfect for high-visibility designs. Their large filled areas allow color customization, adding vibrant accents to your designs. Their strong legibility on dark backgrounds makes them a go-to for airport signage and wayfinding, a principle that applies perfectly to interfaces.
Flex is a fluid icon family inspired by nature’s curves. It replaces rigid geometry with smooth, flowing forms. It’s more organic and expressive than Core (neutral) but subtler than Plump (chunky, playful). Read about the design process.