diff --git a/Shared/Preferences/PreferencesModel.swift b/Shared/Preferences/PreferencesModel.swift
index 1afeba3..39e9c24 100644
--- a/Shared/Preferences/PreferencesModel.swift
+++ b/Shared/Preferences/PreferencesModel.swift
@@ -1,20 +1,54 @@
 import SwiftUI
 
 class PreferencesModel: ObservableObject {
-    @Environment(\.colorScheme) var currentColorScheme
-    @Published var preferredColorScheme: ColorScheme = .light
+    /* We're stuck dropping into AppKit/UIKit to set light/dark schemes for now,
+     * because setting the .preferredColorScheme modifier on views in SwiftUI is
+     * currently unreliable.
+     *
+     * Feedback submitted to Apple:
+     *
+     * FB8382883: "On macOS 11β4, preferredColorScheme modifier does not respect .light ColorScheme"
+     * FB8383053: "On iOS 14β4/macOS 11β4, it is not possible to unset preferredColorScheme after setting
+     *              it to either .light or .dark"
+     */
+
+    #if os(iOS)
+    var window: UIWindow? {
+        guard let scene = UIApplication.shared.connectedScenes.first,
+              let windowSceneDelegate = scene.delegate as? UIWindowSceneDelegate,
+              let window = windowSceneDelegate.window else {
+            return nil
+        }
+        return window
+    }
+    #endif
+
+    @Published var selectedColorScheme: ColorScheme?
     @Published var appearance: Int = 0 {
         didSet {
             switch appearance {
-            case 0:
-                preferredColorScheme = currentColorScheme
             case 1:
-                preferredColorScheme = .light
+//                selectedColorScheme = .light
+                #if os(macOS)
+                NSApp.appearance = NSAppearance(named: .aqua)
+                #else
+                window?.overrideUserInterfaceStyle = .light
+                #endif
             case 2:
-                preferredColorScheme = .dark
+//                selectedColorScheme = .dark
+                #if os(macOS)
+                NSApp.appearance = NSAppearance(named: .darkAqua)
+                #else
+                window?.overrideUserInterfaceStyle = .dark
+                #endif
             default:
-                print("Unknown option selected, failing gracefully...")
+//                selectedColorScheme = .none
+                #if os(macOS)
+                NSApp.appearance = nil
+                #else
+                window?.overrideUserInterfaceStyle = .unspecified
+                #endif
             }
         }
     }
 }
diff --git a/Shared/WriteFreely_MultiPlatformApp.swift b/Shared/WriteFreely_MultiPlatformApp.swift
index 53fee33..891f8f2 100644
--- a/Shared/WriteFreely_MultiPlatformApp.swift
+++ b/Shared/WriteFreely_MultiPlatformApp.swift
@@ -1,46 +1,46 @@
 import SwiftUI
 
 @main
 struct WriteFreely_MultiPlatformApp: App {
     @StateObject private var preferences = PreferencesModel()
     @StateObject private var account = AccountModel()
 
     #if os(macOS)
     @State private var selectedTab = 0
     #endif
 
     #if DEBUG
     @StateObject private var store = testPostStore
     #else
     @StateObject private var store = PostStore()
     #endif
 
     var body: some Scene {
         WindowGroup {
             ContentView(postStore: store, preferences: preferences, account: account)
-                .preferredColorScheme(preferences.preferredColorScheme)
+//                .preferredColorScheme(preferences.selectedColorScheme)    // See PreferencesModel for info.
         }
 
         #if os(macOS)
         Settings {
             TabView(selection: $selectedTab) {
                 MacAccountView(account: account)
                     .tabItem {
                         Image(systemName: "person.crop.circle")
                         Text("Account")
                     }
                     .tag(0)
                 MacPreferencesView(preferences: preferences)
                     .tabItem {
                         Image(systemName: "gear")
                         Text("Preferences")
                     }
                     .tag(1)
             }
             .frame(minWidth: 300, maxWidth: 300, minHeight: 200, maxHeight: 200)
             .padding()
-            .preferredColorScheme(preferences.preferredColorScheme)
+//            .preferredColorScheme(preferences.selectedColorScheme)    // See PreferencesModel for info.
         }
         #endif
     }
 }
diff --git a/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist b/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist
index 6cd8075..2723ebe 100644
--- a/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ b/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist
@@ -1,19 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>SchemeUserState</key>
 	<dict>
 		<key>WriteFreely-MultiPlatform (iOS).xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>1</integer>
+			<integer>0</integer>
 		</dict>
 		<key>WriteFreely-MultiPlatform (macOS).xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>0</integer>
+			<integer>1</integer>
 		</dict>
 	</dict>
 </dict>
 </plist>
diff --git a/iOS/Settings/SettingsView.swift b/iOS/Settings/SettingsView.swift
index a9c1d26..5bf73a2 100644
--- a/iOS/Settings/SettingsView.swift
+++ b/iOS/Settings/SettingsView.swift
@@ -1,29 +1,29 @@
 import SwiftUI
 
 struct SettingsView: View {
     @EnvironmentObject var preferences: PreferencesModel
     @EnvironmentObject var account: AccountModel
 
     @Binding var isPresented: Bool
 
     var body: some View {
         VStack {
             SettingsHeaderView(isPresented: $isPresented)
             Form {
                 Section(header: Text("Login Details")) {
                     AccountView(account: account)
                 }
                 Section(header: Text("Appearance")) {
                     PreferencesView(preferences: preferences)
                 }
             }
         }
-        .preferredColorScheme(preferences.preferredColorScheme)
+//        .preferredColorScheme(preferences.selectedColorScheme)    // See PreferencesModel for info.
     }
 }
 
 struct SettingsView_Previews: PreviewProvider {
     static var previews: some View {
         SettingsView(isPresented: .constant(true))
     }
 }