App.xaml

<Application x:Class="HospitalDocumentation.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:HospitalDocumentation">

    <Application.Resources>
        <Style TargetType="Button">
            <Setter Property="Margin" Value="5"/>
            <Setter Property="Width" Value="175"/>
            <Setter Property="Height" Value="30"/>
            <Setter Property="VerticalAlignment" Value="Center"/>
            <Setter Property="Background" Value="#E6E6FA"/>
        </Style>

        <Style TargetType="TextBox">
            <Setter Property="VerticalAlignment" Value="Center"/>
            <Setter Property="HorizontalAlignment" Value="Stretch"/>
            <Setter Property="Height" Value="30"/>
            <Setter Property="VerticalContentAlignment" Value="Center"/>
            <Setter Property="Margin" Value="5"/>
            <Setter Property="Background" Value="#F0F8FF"/>
        </Style>

        <Style TargetType="DatePicker">
            <Setter Property="VerticalAlignment" Value="Center"/>
            <Setter Property="HorizontalAlignment" Value="Stretch"/>
            <Setter Property="Height" Value="30"/>
            <Setter Property="VerticalContentAlignment" Value="Center"/>
            <Setter Property="Margin" Value="5"/>
            <Setter Property="Background" Value="#F0F8FF"/>
        </Style>

        <Style TargetType="ComboBox">
            <Setter Property="VerticalAlignment" Value="Center"/>
            <Setter Property="HorizontalAlignment" Value="Stretch"/>
            <Setter Property="Height" Value="30"/>
            <Setter Property="VerticalContentAlignment" Value="Center"/>
            <Setter Property="Margin" Value="5"/>
            <Setter Property="Background" Value="#F0F8FF"/>
        </Style>

        <Style TargetType="TextBlock">
            <Setter Property="VerticalAlignment" Value="Center"/>
            <Setter Property="HorizontalAlignment" Value="Left"/>
        </Style>
    </Application.Resources>
</Application>