iOS 14/macOS Big Sur Support

Extensions/Color+Background.swift

@@ -0,0 +1,17 @@
+import SwiftUI
+
+extension Color {
+    #if os(macOS)
+        static let background = Color(NSColor.windowBackgroundColor)
+        static let secondaryBackground = Color(NSColor.underPageBackgroundColor)
+        static let tertiaryBackground = Color(NSColor.controlBackgroundColor)
+    #elseif os(iOS)
+        static let background = Color(UIColor.systemBackground)
+        static let secondaryBackground = Color(UIColor.secondarySystemBackground)
+        static let tertiaryBackground = Color(UIColor.tertiarySystemBackground)
+    #else
+        static let background = Color.black
+        static let secondaryBackground = Color.black
+        static let tertiaryBackground = Color.black
+    #endif
+}

Extensions/NSTextField+FocusRingType.swift

@@ -0,0 +1,8 @@
+import AppKit
+
+extension NSTextField {
+    override open var focusRingType: NSFocusRingType {
+        get { .none }
+        set {} // swiftlint:disable:this unused_setter_value
+    }
+}

Extensions/String+Format.swift

@@ -0,0 +1,10 @@
+import Foundation
+
+extension String {
+    func replacingFirstOccurrence(of target: String, with replacement: String) -> String {
+        guard let range = range(of: target) else {
+            return self
+        }
+        return replacingCharacters(in: range, with: replacement)
+    }
+}

Extensions/View+Borders.swift

@@ -10,7 +10,21 @@ extension View {
         verticalEdgeBorder(.bottom, height: height, color: color)
     }
 
+    func borderLeading(width: Double, color: Color = Color(white: 0.7, opacity: 1)) -> some View {
+        horizontalEdgeBorder(.leading, width: width, color: color)
+    }
+
+    func borderTrailing(width: Double, color: Color = Color(white: 0.7, opacity: 1)) -> some View {
+        horizontalEdgeBorder(.trailing, width: width, color: color)
+    }
+
     private func verticalEdgeBorder(_ edge: Alignment, height: Double, color: Color) -> some View {
-        overlay(Rectangle().frame(width: nil, height: height, alignment: .top).foregroundColor(color), alignment: edge)
+        overlay(Rectangle().frame(width: nil, height: height, alignment: .top)
+            .foregroundColor(color), alignment: edge)
+    }
+
+    private func horizontalEdgeBorder(_ edge: Alignment, width: Double, color: Color) -> some View {
+        overlay(Rectangle().frame(width: width, height: nil, alignment: .leading)
+            .foregroundColor(color), alignment: edge)
     }
 }