WPF 的ContextMenu菜单左边有个白色的怎么去掉？

Question

```xml
<ContextMenu x:Key="ContextMenu" Background="#505050" Foreground="White" BorderBrush="Transparent" BorderThickness="0" Padding="0">
            <MenuItem Header="打开"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0">
                <MenuItem Header="打开1"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0"/>
                <MenuItem Header="打开2"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0"/>
            </MenuItem>
            <MenuItem Header="关闭"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0"/>
            <MenuItem Header="复制"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0"/>
            <MenuItem Header="删除"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0"/>
            <MenuItem Header="保存"  Background="#505050" Foreground="White" Margin="0" BorderThickness="0"/>
        </ContextMenu>

修改了MenuItem 的模板内容还是没找到相关修改位置

Answer 1

将 Icon 属性设置为 null，并覆盖填充。

<MenuItem Header="打开" Background="#505050" Foreground="White" Margin="0" BorderThickness="0" Icon="{x:Null}">