Apply the MahApps.Metro theme and focus on other controls or rectangles

Question

I am trying to put a status bar at the bottom of the window that uses the same color scheme as the title bar. I know that the part I am missing is style inheritance and / or template customization, but I read for hours, and I cannot figure it out.

Here's what my window looks like:

Here's what it looks like in a designer:

What I want:

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( cmdline):

<Grid Grid.Row="1">
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="0.5*"/>
        <ColumnDefinition Width="0.5*"/>
    </Grid.ColumnDefinitions>
    <Label Grid.Column="0"/>
    <Grid  Grid.Column="1">
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <TextBox Grid.Row="0" Grid.Column="0"/>
        <TextBox Grid.Row="0" Grid.Column="1"/>
    </Grid>
</Grid>

Answer 1

, AccentColorBrush .

<Grid Grid.Row="1" Background="{DynamicResource AccentColorBrush}">

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