Component Patterns (macOS) macOS Visual Design — Desktop-Native Feel macOS apps should feel like professional desktop tools, not enlarged phone apps. Sidebar : Use translucent sidebar by default (NavigationSplitView handles this). The sidebar background is slightly transparent when the window is active, becoming opaque when inactive — this signals which window has focus. Color density : Similar to iOS — accent colors, branded surfaces, and colored icons are appropriate. However, in macOS Tahoe (26), sidebar icons default to monochrome (not tinted) since tinted icons clash with the translucent…