Principle - Paged Scrolling
① Command + N → Artboard1(Width 320 / Height 568) → Fill(Hex CD5AFF)
② R(Width 320 / Height 568)→ Align Centers → Align Middles → Layer
③ Layer → Option - Layer 2 - Fill(Hex FFFFFF)
④ Layer → Option - Layer 3
⑤ Command + A → Command + G → W