Price Before Tax - Calculatorv2.34

What changed

• UXDirect price entry in main card and inline tax rate editing
• UXSwipe gestures to switch between calculation modes
• UXFull Dark Mode support across all screens
• UXInput validation to restrict price and rate fields to numbers only
• UXVisual update to the Save button
• RetentionRefined onboarding start-up tour

Original release notes

• Enter your price right in the main card — and tap the percentage to change your tax rate without leaving the screen.
• Swipe left or right anywhere to switch between Before Tax, After Tax and Discount.
• Full Dark Mode support — every screen is now easy to read in any appearance.
• The price and rate fields accept numbers only, so a stray character can't throw off your result.
• A clearer Save button and a smoother start-up tour.