Compare the appearances of these controls with the ones in the ToolBar.

   
    



<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Background="White">
  <Window.Resources>
    <Style x:Key="{x:Static ToolBar.SeparatorStyleKey}" TargetType="Separator">
      <Setter Property="Background" Value="DarkBlue"/>
      <Setter Property="Width" Value="2"/>
    </Style>

    <Style x:Key="{x:Static ToolBar.ButtonStyleKey}" TargetType="Button">
      <Setter Property="Foreground" Value="Blue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>

    <Style x:Key="{x:Static ToolBar.CheckBoxStyleKey}" TargetType="CheckBox">
      <Setter Property="Foreground" Value="DarkSlateBlue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>
    
    <Style x:Key="{x:Static ToolBar.MenuStyleKey}" TargetType="Menu">
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="FontStyle" Value="Italic"/>
      <Setter Property="FontWeight" Value="Bold"/>
      <Setter Property="Background" Value="LightSteelBlue"/>
    </Style>
    
    <Style x:Key="{x:Static ToolBar.RadioButtonStyleKey}" TargetType="RadioButton">
      <Setter Property="Background" Value="LightSteelBlue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>
   
    <Style x:Key="{x:Static ToolBar.TextBoxStyleKey}" TargetType="TextBox">
      <Setter Property="Background" Value="DarkBlue"/>
      <Setter Property="Foreground" Value="White"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="FontStyle" Value="Italic"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
      <Setter Property="Width" Value="75"/>
    </Style>
    
    <Style x:Key="{x:Static ToolBar.ComboBoxStyleKey}" TargetType="ComboBox">
      <Setter Property="Background" Value="LightSteelBlue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="MinWidth" Value="60"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>
    
    <Style TargetType="Separator">
      <Setter Property="Background" Value="DarkBlue"/>
      <Setter Property="Width" Value="2"/>
    </Style>

    <Style TargetType="Button">
      <Setter Property="Foreground" Value="Blue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>

    <Style TargetType="CheckBox">
      <Setter Property="Foreground" Value="DarkSlateBlue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>

    <Style TargetType="Menu">
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="FontStyle" Value="Italic"/>
      <Setter Property="FontWeight" Value="Bold"/>
      <Setter Property="Background" Value="LightSteelBlue"/>
    </Style>

    <Style TargetType="RadioButton">
      <Setter Property="Background" Value="LightSteelBlue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>

    <Style TargetType="TextBox">
      <Setter Property="Background" Value="DarkBlue"/>
      <Setter Property="Foreground" Value="White"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="FontStyle" Value="Italic"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
      <Setter Property="Width" Value="75"/>
    </Style>

    <Style TargetType="ComboBox">
      <Setter Property="Background" Value="LightSteelBlue"/>
      <Setter Property="FontSize" Value="14"/>
      <Setter Property="MinWidth" Value="60"/>
      <Setter Property="HorizontalAlignment" Value="Center"/>
      <Setter Property="VerticalAlignment" Value="Center"/>
    </Style>
  </Window.Resources>

  <StackPanel>

    <WrapPanel Background="LightBlue"
               Margin="10,10,3,3" 
               Grid.Column="0" Grid.Row="4">
      <Button Margin="2" Content="Button 1"/>
      <Button Margin="2" Content="Button 2"/>
      <CheckBox Margin="2" Content="CheckBox 1"/>
      <CheckBox Margin="2" Content="CheckBox 2"/>
      <RadioButton Margin="2">One</RadioButton>
      <RadioButton Margin="2">Two</RadioButton>
      <ComboBox Margin="2">
        <ComboBoxItem IsSelected="True">Item 1</ComboBoxItem>
        <ComboBoxItem>Item 2</ComboBoxItem>
        <ComboBoxItem>Item 3</ComboBoxItem>
        <ComboBoxItem>Item 4</ComboBoxItem>
      </ComboBox>
      <TextBox Margin="2"/>
      <Menu Margin="2">
        <MenuItem Header="Menu">
          <MenuItem Header="File">
            <MenuItem Header="Copy"/>
            <MenuItem Header="Paste"/>
          </MenuItem>
        </MenuItem>
      </Menu>
    </WrapPanel>


  </StackPanel>
</Window>