I am a UI developer who collaborates with designers a lot. Sometimes, I suffered from colors that looked the same but had slight differences, or margins set by designers without any standard, based on their intuition. In particular, maintenance was a real “hell”. Then, while looking for a way to solve this, I learned about the concept of a design system and came across examples of its application in several famous IT companies. I suggested that I build a design system to my co-workers, but when I was at a loss as to how to start, the “Design System with Figma” lecture I came across was the best choice. I think this is a course that everyone, including planners, designers, and developers, should take. I highly recommend it to companies that are using Figma.