I keep encountering marketing, advertising, UI, and agency folks who are trying to break into product design, OR who have just realized that design systems will aid their workflow. One common misconception I encounter over and over again, though, is that many folks assume that what they’ve made in Figma, Sketch, Photoshop, or another program is inherently a design system. Fundamentally not the case.

In 2026 the line between a “UI kit” and a “design system” is pretty firm. A Figma component library, even a strong one, is a UI kit. It is not a design system.

A UI kit becomes a design system when it’s also backed by:

  1. Coded components
  2. A token pipeline that keeps design and code in sync
  3. Documentation
  4. Accessibility built in
  5. Visual regression testing
  6. Most importantly, real adoption in production

You design “tokens” alone (the atoms, molecules, etc that make up your reusable components) are table stakes now, with 84% of teams using them and the format standardized by the W3C in late 2025. “Design system” is just a much bigger thing than most orgs realize.

    Why should you get this right?

    Like I have spoken about many times, folks looking to move into product design (or those just looking to make use of design systems) may be used to working a certain way. If you’re used to working things up until they reach a completion point/done state, then you’re going to struggle with design systems.

    Design systems inherently require strong communication, collaboration, and coordination across functions to operate effectively and efficiently. Don’t hand things off; instead, work side by side with developers, determine what’s feasible for each iteration, collect feedback from customer and account teams as well as your own research, and build a healthy pipeline.