What's New in Version 1.2.0: 1. Full Support for iPhone Duo & Dual-Screen Tracing • Fully optimized for iPhone Duo: enjoy an expansive dual-screen lightbox canvas with edge-to-edge backlight illumination. • Tailored layout for Duo's unique safe area and side status bar — completely seamless with zero visual seams or black bars. 2. A4 Printable Coloring Sheets • 3 layout modes: Full-page (1-Up), Split (2-Up), and 2x2 Grid (4-Up). • Line Opacity Control (15% Faint, 35% Light, 70% Normal, 100% Full) — perfect for light outline tracing without obscuring real pencil strokes. • Direct AirPrint and high-resolution PDF export. 3. Artwork Showcase & Alignment Camera • Semi-transparent overlay camera to perfectly align physical drawings with digital sketches. • Create high-res side-by-side showcase cards to document your drawing journey. 4. Professional Grids & Metric Ruler • Rule of Thirds, 1cm physical grid, and diagonal grids for precise positioning. • Accurate millimeter & centimeter rulers along the top and left edges. 5. Backlight Color Modes • Cool White, Warm White, High-Contrast Green, and Amber Night Light — easier on the eyes during long tracing sessions. 6. Instant Volume Button Unlock • Tap hardware volume buttons to unlock instantly without long-pressing. 7. Performance & Quality Improvements • Seamless, instant filter switching for Comic, Sketch, and Outline effects. • Clean, standardized file export naming (Date + Sequence) for effortless organizing.