OshimaGameModule/OshimaModes/UserControl/CustomProgressBar.xaml

<UserControl x:Class="Oshima.FunGame.OshimaModes.CustomProgressBar"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             Height="20">
    <ProgressBar x:Name="progressBar" 
                 Value="50" 
                 Minimum="0" 
                 Maximum="100" 
                 Height="{Binding Height, RelativeSource={RelativeSource AncestorType=UserControl}}"
                 BorderBrush="{Binding BorderBrush, RelativeSource={RelativeSource AncestorType=UserControl}}"
                 BorderThickness="{Binding BorderThickness, RelativeSource={RelativeSource AncestorType=UserControl}}"/>
</UserControl>