App.xaml

<Application x:Class="RFCL.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:RFCL"
             StartupUri="MainWindow.xaml"
             xmlns:pu="https://opensource.panuon.com/wpf-ui"
             xmlns:ui="http://schemas.modernwpf.com/2019">
    <Application.Resources>
        <ResourceDictionary>
            <FontFamily x:Key="SegoeIcons">/Assets/Fonts/SegoeIcons.ttf#Segoe Fluent Icons</FontFamily>
            <!--<Button x:Key="RFCLButton">
                <Button.Background>
                </Button.Background>
            </Button>-->
            <ResourceDictionary.MergedDictionaries>
                <pu:StyleDictionary Includes="All" />
                <ui:ThemeResources RequestedTheme="Dark">
                    <ui:ThemeResources.AccentColor>
                        <Color R="42" G="42" B="42" A="50" />
                    </ui:ThemeResources.AccentColor>
                </ui:ThemeResources>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>