diff --git a/XplorePlane/Assets/Icons/Clear.png b/XplorePlane/Assets/Icons/Clear.png
new file mode 100644
index 0000000..285eeae
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diff --git a/XplorePlane/Assets/Icons/Undo.png b/XplorePlane/Assets/Icons/Undo.png
new file mode 100644
index 0000000..a81bd7d
Binary files /dev/null and b/XplorePlane/Assets/Icons/Undo.png differ
diff --git a/XplorePlane/Assets/Icons/brush32.png b/XplorePlane/Assets/Icons/brush32.png
new file mode 100644
index 0000000..39ca1d6
Binary files /dev/null and b/XplorePlane/Assets/Icons/brush32.png differ
diff --git a/XplorePlane/Assets/Icons/eraser32.png b/XplorePlane/Assets/Icons/eraser32.png
new file mode 100644
index 0000000..651e27e
Binary files /dev/null and b/XplorePlane/Assets/Icons/eraser32.png differ
diff --git a/XplorePlane/Assets/Icons/magic32.png b/XplorePlane/Assets/Icons/magic32.png
new file mode 100644
index 0000000..5ebc7c1
Binary files /dev/null and b/XplorePlane/Assets/Icons/magic32.png differ
diff --git a/XplorePlane/Assets/Icons/rectangle32.png b/XplorePlane/Assets/Icons/rectangle32.png
new file mode 100644
index 0000000..6eaed6c
Binary files /dev/null and b/XplorePlane/Assets/Icons/rectangle32.png differ
diff --git a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml
index 46f1700..07d443a 100644
--- a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml
+++ b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml
@@ -43,14 +43,22 @@
         <!-- 工具选择 -->
         <TextBlock Text="工具" FontWeight="SemiBold" Margin="0,0,0,4" />
         <WrapPanel>
-            <RadioButton x:Name="RbRoi" Content="ROI" IsChecked="True" Margin="0,0,4,4"
-                         Style="{StaticResource ToolToggleStyle}" />
-            <RadioButton x:Name="RbWand" Content="魔棒" Margin="0,0,4,4"
-                         Style="{StaticResource ToolToggleStyle}" />
-            <RadioButton x:Name="RbBrush" Content="画笔" Margin="0,0,4,4"
-                         Style="{StaticResource ToolToggleStyle}" />
-            <RadioButton x:Name="RbEraser" Content="橡皮擦" Margin="0,0,0,4"
-                         Style="{StaticResource ToolToggleStyle}" />
+            <RadioButton x:Name="RbRoi" IsChecked="True" Margin="0,0,4,4"
+                         ToolTip="ROI" Style="{StaticResource ToolToggleStyle}">
+                <Image Source="/Assets/Icons/rectangle32.png" Width="20" Height="20" />
+            </RadioButton>
+            <RadioButton x:Name="RbWand" Margin="0,0,4,4"
+                         ToolTip="魔棒" Style="{StaticResource ToolToggleStyle}">
+                <Image Source="/Assets/Icons/magic32.png" Width="20" Height="20" />
+            </RadioButton>
+            <RadioButton x:Name="RbBrush" Margin="0,0,4,4"
+                         ToolTip="画笔" Style="{StaticResource ToolToggleStyle}">
+                <Image Source="/Assets/Icons/brush32.png" Width="20" Height="20" />
+            </RadioButton>
+            <RadioButton x:Name="RbEraser" Margin="0,0,0,4"
+                         ToolTip="橡皮擦" Style="{StaticResource ToolToggleStyle}">
+                <Image Source="/Assets/Icons/eraser32.png" Width="20" Height="20" />
+            </RadioButton>
         </WrapPanel>
 
         <Separator Margin="0,6" />
@@ -58,9 +66,9 @@
         <!-- 阈值 -->
         <TextBlock Text="灰度阈值（与点击点的最大灰度差）" Margin="0,0,0,4" FontSize="11" Foreground="Gray" />
         <DockPanel>
-            <TextBox x:Name="TbThreshold" DockPanel.Dock="Right" Width="45" Text="128"
+            <TextBox x:Name="TbThreshold" DockPanel.Dock="Right" Width="45" Text="30"
                      VerticalContentAlignment="Center" Margin="6,0,0,0" />
-            <Slider x:Name="SliderThreshold" Minimum="0" Maximum="255" Value="128"
+            <Slider x:Name="SliderThreshold" Minimum="0" Maximum="60" Value="30"
                     VerticalAlignment="Center" />
         </DockPanel>
 
@@ -86,9 +94,13 @@
 
         <!-- 操作按钮 -->
         <WrapPanel HorizontalAlignment="Center">
-            <Button Content="撤销" Padding="12,4" Margin="0,0,8,0" Click="Undo_Click" />
-            <Button Content="清除标记" Padding="12,4" Margin="0,0,8,0" Click="ClearMask_Click" />
-            <Button Content="完成" Padding="12,4" Click="Finish_Click" />
+            <Button Padding="8,4" Margin="0,0,8,0" ToolTip="撤销" Click="Undo_Click">
+                <Image Source="/Assets/Icons/Undo.png" Width="20" Height="20" />
+            </Button>
+            <Button Padding="8,4" Margin="0,0,8,0" ToolTip="清除标记" Click="ClearMask_Click">
+                <Image Source="/Assets/Icons/Clear.png" Width="20" Height="20" />
+            </Button>
+            <Button Content="OK" Padding="12,4" Click="Finish_Click" />
         </WrapPanel>
     </StackPanel>
 </Window>
diff --git a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs
index 58ba847..8169eac 100644
--- a/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs
+++ b/XplorePlane/Views/ImageProcessing/BubbleMeasurePanel.xaml.cs
@@ -48,6 +48,19 @@ namespace XplorePlane.Views.ImageProcessing
                 _canvas?.SetBubbleBrushSize((int)SliderBrushSize.Value);
             };
 
+            // VoidLimit 同步
+            TbVoidLimit.TextChanged += (s, ev) =>
+            {
+                if (double.TryParse(TbVoidLimit.Text, out double val))
+                    _canvas?.SetBubbleVoidLimit(System.Math.Clamp(val, 0, 100));
+            };
+
+            // 初始同步：确保面板默认值推送到 canvas
+            _canvas?.SetBubbleThreshold((int)SliderThreshold.Value);
+            _canvas?.SetBubbleBrushSize((int)SliderBrushSize.Value);
+            if (double.TryParse(TbVoidLimit.Text, out double initLimit))
+                _canvas?.SetBubbleVoidLimit(System.Math.Clamp(initLimit, 0, 100));
+
             // 监听 canvas 的工具切换事件（ROI 画完后自动切换时同步面板）
             if (_canvas != null)
             {