Question

How to change foreground color for all controls in the application? I need to change color for: textboxes, textblocks, borders of buttons.

It will take too long to do it one by one (over 100 controls).

Answer 1

This is what styles are for. You can add styles in your app.xaml file. Something like:

<Application.Resources>
    <Style TargetType="TextBlock">
        <Setter Property="Foreground" Value="White" />
    </Style>
    <Style TargetType="TextBox">
        <Setter Property="Foreground" Value="White" />
    </Style>
</Application.Resources>