Lucide

Lucide is a community-built, open-source library of 1,600+ SVG icons that grew out of Feather Icons, drawn to a strict set of rules for consistent style and readability at every size. Icons are tree-shakable and customisable in colour, size and stroke width, with official packages for all major frameworks, and the community adds new icons through design requests. It is the default icon set in shadcn/ui, so it appears in a great many interfaces built on that stack.