UI Reasoning: Developer Tool / IDE. Recommended Pattern: Minimal + Documentation. Style Priority: Dark Mode (OLED) + Minimalism. Color Mood: Dark syntax theme + Blue focus. Typography Mood: Monospace + Functional typography. Key Effects: Syntax highlighting + Command palette. Decision Rules: {"must_have": "keyboard-shortcuts", "must_have": "documentation"}. Anti-Patterns: Light mode default + Slow performance. Severity: HIGH.