UI Reasoning: Wallpaper & Theme App. Recommended Pattern: Feature-Rich Showcase + Social Proof. Style Priority: Vibrant & Block-based + Aurora UI. Color Mood: Content-driven + trending aesthetic palettes + download accent. Typography Mood: Energetic + Bold + Large. Key Effects: Large section gaps 48px+ + Color shift hover + Scroll-snap. Decision Rules: {"if_trust_needed": "add-testimonials"}. Anti-Patterns: Muted colors + Low energy. Severity: HIGH.