diff --git a/Ink Canvas/Resources/Styles/Dark.xaml b/Ink Canvas/Resources/Styles/Dark.xaml
index de694f49..5e3491f1 100644
--- a/Ink Canvas/Resources/Styles/Dark.xaml	
+++ b/Ink Canvas/Resources/Styles/Dark.xaml	
@@ -17,9 +17,9 @@
     <SolidColorBrush x:Key="RedBrush" Color="IndianRed" />
     <SolidColorBrush x:Key="PurpleBrush" Color="MediumPurple" />
 
-    <Color x:Key="FloatBarButtonBackgroundKey">Transparent</Color>
-    <Color x:Key="FloatBarButtonBackgroundPointerOverKey">#2200CDCD</Color>
-    <Color x:Key="FloatBarButtonButtonBackgroundPressedKey">#4400CDCD</Color>
+    <SolidColorBrush x:Key="FloatBarButtonBackgroundKey" Color="Transparent" />
+    <SolidColorBrush x:Key="FloatBarButtonBackgroundPointerOverKey" Color="#2200CDCD" />
+    <SolidColorBrush x:Key="FloatBarButtonButtonBackgroundPressedKey" Color="#4400CDCD" />
     
     <!-- 白板模式浮动栏颜色 -->
     <SolidColorBrush x:Key="BoardFloatBarBackground" Color="#2a2a2a" />
diff --git a/Ink Canvas/Resources/Styles/Light.xaml b/Ink Canvas/Resources/Styles/Light.xaml
index 292ee1fc..537fc218 100644
--- a/Ink Canvas/Resources/Styles/Light.xaml	
+++ b/Ink Canvas/Resources/Styles/Light.xaml	
@@ -18,8 +18,8 @@
     <SolidColorBrush x:Key="PurpleBrush" Color="DarkBlue" />
 
     <SolidColorBrush x:Key="FloatBarButtonBackgroundKey" Color="Transparent" />
-    <SolidColorBrush x:Key="FloatBarButtonBackgroundPointerOverKey" Color="#22563eb" />
-    <SolidColorBrush x:Key="FloatBarButtonButtonBackgroundPressedKey" Color="#44563eb" />
+    <SolidColorBrush x:Key="FloatBarButtonBackgroundPointerOverKey" Color="#22563eb0" />
+    <SolidColorBrush x:Key="FloatBarButtonButtonBackgroundPressedKey" Color="#44563eb0" />
     
     <!-- 白板模式浮动栏颜色 -->
     <SolidColorBrush x:Key="BoardFloatBarBackground" Color="#f4f4f5" />
@@ -32,8 +32,8 @@
     
     <!-- 白板模式橡皮擦按钮颜色 -->
     <SolidColorBrush x:Key="BoardFloatBarButtonBackgroundKey" Color="Transparent" />
-    <SolidColorBrush x:Key="BoardFloatBarButtonBackgroundPointerOverKey" Color="#22563eb" />
-    <SolidColorBrush x:Key="BoardFloatBarButtonButtonBackgroundPressedKey" Color="#44563eb" />
+    <SolidColorBrush x:Key="BoardFloatBarButtonBackgroundPointerOverKey" Color="#22563eb0" />
+    <SolidColorBrush x:Key="BoardFloatBarButtonButtonBackgroundPressedKey" Color="#44563eb0" />
     
     <!-- 历史回滚窗口主题颜色 -->
     <SolidColorBrush x:Key="HistoryWindowPrimaryBrush" Color="#2563eb"/>