diff --git a/Flow.Launcher.Infrastructure/Constant.cs b/Flow.Launcher.Infrastructure/Constant.cs
index 8a95ee79f..464a2cbde 100644
--- a/Flow.Launcher.Infrastructure/Constant.cs
+++ b/Flow.Launcher.Infrastructure/Constant.cs
@@ -37,7 +37,7 @@ namespace Flow.Launcher.Infrastructure
 
         public static readonly string QueryTextBoxIconImagePath = $"{ProgramDirectory}\\Images\\mainsearch.svg";
 
-        public const string DefaultTheme = "Win11Light";
+        public const string DefaultTheme = "Win11System";
 
         public const string Light = "Light";
         public const string Dark = "Dark";
diff --git a/Flow.Launcher.Infrastructure/UserSettings/Settings.cs b/Flow.Launcher.Infrastructure/UserSettings/Settings.cs
index 6528f626c..7396a5bb2 100644
--- a/Flow.Launcher.Infrastructure/UserSettings/Settings.cs
+++ b/Flow.Launcher.Infrastructure/UserSettings/Settings.cs
@@ -55,7 +55,7 @@ namespace Flow.Launcher.Infrastructure.UserSettings
                 OnPropertyChanged(nameof(MaxResultsToShow));
             }
         }
-        public bool UseDropShadowEffect { get; set; } = false;
+        public bool UseDropShadowEffect { get; set; } = true;
 
         /* Appearance Settings. It should be separated from the setting later.*/
         public double WindowHeightSize { get; set; } = 42;