WPF4/WpfApp2/Dictionary1.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Style TargetType="Button">
        <Setter Property="Background" Value="#FF4285F4"/>
        <Setter Property="Foreground" Value="White"/>
        <Setter Property="BorderBrush" Value="#FF4285F4"/>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="Padding" Value="10,5"/>
        <Setter Property="FontWeight" Value="Bold"/>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Background" Value="#FF3367D6"/>
            </Trigger>
        </Style.Triggers>
    </Style>

    <Style TargetType="Hyperlink">
        <Setter Property="FontStyle" Value="Oblique"/>
        <Setter Property="Foreground" Value="Black"/>
    </Style>
</ResourceDictionary>