IBM's open-source enterprise design system: IBM Plex typography, the blue-60 #0f62fe interactive color, square-cornered components, a 2x spacing grid, role-based color tokens, and four official themes (White, Gray 10, Gray 90, Gray 100). Built for dense, data-heavy B2B products.
Primary actionSquared-off, left-aligned components on a strict 2x grid — the primary button is a sharp-cornered blue-60 rectangle with text pinned to the left edge and generous right padding, outlined in a 2px blue focus ring when active.