connpass Style Design System (DESIGN.md, Japanese UI)

Design policy: A practical UI that communicates information efficiently. A function-first design specialized for event search and management - Density: Relatively high information density. Event lists and group lists are displayed with an emphasis on scannability - Keywords: Practical, simple, information-dense, orange, for engineers - Characteristics: Lucida Grande is specified at the head of the font stack (an unusual configuration). Headings use font-weight 400 (thin), giving a modest impression. connpass Orange/Red is the brand color