A solid reference that covers the fundamentals you actually need when working on visual designs. You get practical tables for color theory (RGB vs CMYK, WCAG contrast ratios), typography rules (line height, character limits, font pairing suggestions), and layout systems (12-column grids, 8pt spacing). The color psychology section is brief but useful for picking palettes that match intent. The file format guide is handy when you need to remember whether to export SVG or PNG, and what DPI print actually requires. It won't make you a designer, but it gives you enough structure to make informed decisions and communicate better with design teams.
npx skills add https://github.com/travisjneuman/.claude --skill graphic-design