fix: fix unavailable Colors

Author: sbertix

Sources/DropView/Color.swift

@@ -0,0 +1,36 @@
+//
+//  SwiftUI.swift
+//  DropView
+//
+//  Created by Stefano Bertagno on 14/05/21.
+//
+
+import SwiftUI
+
+extension Color {
+    /// The light drop background.
+    private static let lightDropBackground: Color = .init(red: 242/255, green: 242/255, blue: 247/255)
+    /// The dark drop background.
+    private static let darkDropBackground: Color = .init(red: 28/255, green: 28/255, blue: 30/255)
+    
+    /// The drop background color.
+    ///
+    /// - parameter scheme: A valid `ColorScheme`.
+    /// - returns: A valid `Color`.
+    static func dropBackground(for scheme: ColorScheme) -> Color {
+        scheme == .dark ? darkDropBackground : lightDropBackground
+    }
+    
+    /// The light drop separator.
+    private static let lightDropSeparator: Color = .init(red: 234/255, green: 234/255, blue: 237/255)
+    /// The dark drop separator.
+    private static let darkDropSeparator: Color = .init(red: 39/255, green: 39/255, blue: 41/255)
+    
+    /// The separator color.
+    ///
+    /// - parameter scheme: A valid `ColorScheme`.
+    /// - returns: A valid `Color`.
+    static func dropSeparator(for scheme: ColorScheme) -> Color {
+        scheme == .dark ? darkDropSeparator : lightDropSeparator
+    }
+}

Sources/DropView/DropView.swift

@@ -9,6 +9,8 @@ import SwiftUI
 
 /// A `struct` defining a view displaying `Drop`s.
 public struct DropView: View {
+    /// The color scheme.
+    @Environment(\.colorScheme) var colorScheme
     /// The pixel length.
     @Environment(\.pixelLength) var pixelLength
 
@@ -47,9 +49,9 @@ public struct DropView: View {
                        bottom: drop.subtitle == nil ? 15 : 10,
                        trailing: drop.hasAction ? 12.5 : drop.hasIcon ? 40 : 50))
         .frame(minHeight: 50)
-        .background(Color(.secondarySystemBackground))
+        .background(Color.dropBackground(for: colorScheme))
         .mask(Capsule())
-        .overlay(Capsule().strokeBorder(Color(.opaqueSeparator).opacity(0.25), lineWidth: pixelLength))
+        .overlay(Capsule().strokeBorder(Color.dropSeparator(for: colorScheme), lineWidth: pixelLength))
         .shadow(color: .black.opacity(0.15),
                 radius: 25,
                 x: 0,

Sources/DropView/View+DropView.swift

@@ -25,8 +25,7 @@ public extension View {
     }
 }
 
-#if DEBUG
-
+#if DEBUG && !os(tvOS)
 private struct DropPreviewView: View {
     /// An optional `Drop` binding.
     @State var drop: Drop?