diff --git a/FollowUI/Sources/FollowUI/App.swift b/FollowUI/Sources/FollowUI/App.swift
index 82a2a5b..4e75625 100644
--- a/FollowUI/Sources/FollowUI/App.swift
+++ b/FollowUI/Sources/FollowUI/App.swift
@@ -13,5 +13,6 @@ struct swift_followApp: App {
         WindowGroup {
             LandingView()
         }
+        .windowStyle(.hiddenTitleBar)
     }
 }
diff --git a/FollowUI/Sources/FollowUI/EntryDetailView.swift b/FollowUI/Sources/FollowUI/EntryDetailView.swift
index 08bdc82..ad96e4e 100644
--- a/FollowUI/Sources/FollowUI/EntryDetailView.swift
+++ b/FollowUI/Sources/FollowUI/EntryDetailView.swift
@@ -27,7 +27,9 @@ struct EntryDetailView: View {
     var body: some View {
         if #available(iOS 18.0, macOS 15.0, visionOS 2.0, *) {
             scrollView
+#if os(iOS)
                 .toolbarVisibility(.hidden, for: .tabBar)
+#endif
         } else {
             scrollView
         }
diff --git a/FollowUI/Sources/FollowUI/EntryListItemView.swift b/FollowUI/Sources/FollowUI/EntryListItemView.swift
index 5c04fde..5bf0d8c 100644
--- a/FollowUI/Sources/FollowUI/EntryListItemView.swift
+++ b/FollowUI/Sources/FollowUI/EntryListItemView.swift
@@ -18,16 +18,16 @@ private struct EntryListItemText: View {
         VStack(alignment: .leading, spacing: 2) {
             Text(topSubtitle)
                 .font(.custom("SNProVF-Bold", size: 11))
-                .foregroundStyle(Color(uiColor: .secondaryLabel))
+                .foregroundStyle(Color.secondaryLabel)
                 .lineSpacing(2)
                 .lineLimit(1)
             Text(headline)
                 .font(.custom("SNProVF-Medium", size: 16))
-                .foregroundStyle(Color(uiColor: read ? .secondaryLabel : .label))
+                .foregroundStyle(read ? Color.secondaryLabel : Color.label)
                 .lineLimit(1)
             Text(content)
                 .font(.custom("SNProVF", size: 15))
-                .foregroundStyle(Color(uiColor: .secondaryLabel))
+                .foregroundStyle(Color.secondaryLabel)
                 .lineSpacing(2)
                 .lineLimit(3)
         }
diff --git a/FollowUI/Sources/FollowUI/EntryListView.swift b/FollowUI/Sources/FollowUI/EntryListView.swift
index 0dfde48..cdbce59 100644
--- a/FollowUI/Sources/FollowUI/EntryListView.swift
+++ b/FollowUI/Sources/FollowUI/EntryListView.swift
@@ -32,7 +32,9 @@ public struct EntryListView: View {
     public var body: some View {
         if #available(iOS 18.0, macOS 15.0, visionOS 2.0, *) {
             navigationStack
+#if os(iOS)
                 .toolbarVisibility(feeds == nil && lists == nil ? .visible : .hidden, for: .tabBar)
+#endif
         } else {
             navigationStack
         }
diff --git a/FollowUI/Sources/FollowUI/Extensions/ColorExtensions.swift b/FollowUI/Sources/FollowUI/Extensions/ColorExtensions.swift
new file mode 100644
index 0000000..02eb74e
--- /dev/null
+++ b/FollowUI/Sources/FollowUI/Extensions/ColorExtensions.swift
@@ -0,0 +1,25 @@
+//
+//  ColorExtensions.swift
+//  FollowUI
+//
+//  Created by Ziyuan Zhao on 2024/12/7.
+//
+
+import SwiftUI
+
+#if canImport(UIKit)
+// MARK: Color + UIKit
+extension Color {
+    static let secondaryLabel = Color(uiColor: .secondaryLabel)
+}
+#elseif canImport(AppKit)
+// MARK: Color + AppKit
+extension Color {
+    static let label = Color(nsColor: .labelColor)
+    
+    static let secondaryLabel = Color(nsColor: .secondaryLabelColor)
+    
+    // TODO: Find a proper color
+    static let systemGroupedBackground = Color(nsColor: .underPageBackgroundColor)
+}
+#endif
diff --git a/FollowUI/Sources/FollowUI/LandingView.swift b/FollowUI/Sources/FollowUI/LandingView.swift
index d7c53e4..d168d45 100644
--- a/FollowUI/Sources/FollowUI/LandingView.swift
+++ b/FollowUI/Sources/FollowUI/LandingView.swift
@@ -235,6 +235,7 @@ struct LandingView: View {
                         } label: {
                             Text("No account? Demo mode >")
                         }
+                        .buttonStyle(.plain)
                         .sheet(isPresented: $showDemoModeLoginView) {
                             DemoModeLoginView()
                                 .environmentObject(authHandler)
@@ -255,6 +256,7 @@ struct LandingView: View {
                             .foregroundColor(.white)
                             .cornerRadius(8)
                         }
+                        .buttonStyle(.plain)
                         Button(action: {
                             authHandler.startAuthentication("google")
                         }) {
@@ -271,6 +273,7 @@ struct LandingView: View {
                             .foregroundColor(.white)
                             .cornerRadius(8)
                         }
+                        .buttonStyle(.plain)
                     }
                     .offset(y: buttonsOffset)
                     .opacity(buttonsOpacity)
diff --git a/FollowUI/Sources/FollowUI/ProfileView.swift b/FollowUI/Sources/FollowUI/ProfileView.swift
index 572e156..90ec58d 100644
--- a/FollowUI/Sources/FollowUI/ProfileView.swift
+++ b/FollowUI/Sources/FollowUI/ProfileView.swift
@@ -102,7 +102,7 @@ struct ProfileView: View {
                         }
                     }
                     .padding()
-                    .background(Color(uiColor: .systemGroupedBackground))
+                    .background(Color.systemGroupedBackground)
                     .clipShape(RoundedRectangle(cornerRadius: 8))
                     VStack(alignment: .leading, spacing: 0) {
                         HStack {
@@ -135,8 +135,8 @@ struct ProfileView: View {
                         }
                         .padding()
                     }
-                    .foregroundStyle(Color(uiColor: .label))
-                    .background(Color(uiColor: .systemGroupedBackground))
+                    .foregroundStyle(Color.label)
+                    .background(Color.systemGroupedBackground)
                     .clipShape(RoundedRectangle(cornerRadius: 8))
                     Button(action: {
                         authHandler.logout()
@@ -156,6 +156,7 @@ struct ProfileView: View {
                         .background(Color(red: 59 / 255, green: 130 / 255, blue: 246 / 255))
                         .cornerRadius(8)
                     }
+                    .buttonStyle(.plain)
                 }
                 .padding()
             }