NebulaLauncher/Nebula.Launcher/App.axaml

<Application
    RequestedThemeVariant="Default"
    x:Class="Nebula.Launcher.App"
    xmlns="https://github.com/avaloniaui"
    xmlns:local="using:Nebula.Launcher"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Application.DataTemplates>
        <local:ViewLocator />
    </Application.DataTemplates>

    <Application.Styles>
        <FluentTheme />
        <Style Selector="Window">
            <Setter Property="Background" Value="#121212" />
        </Style>
        <Style Selector="Border">
            <Setter Property="BorderBrush" Value="#343334" />
            <Setter Property="Background" Value="#222222" />
            <Setter Property="BorderThickness" Value="0" />
        </Style>
        <Style Selector="Label">
            <Setter Property="Foreground" Value="#f7f7ff" />
        </Style>

        <Style Selector="Button">
            <Setter Property="BorderBrush" Value="#343334" />
            <Setter Property="BorderThickness" Value="0" />
            <Setter Property="Padding" Value="5" />
            <Setter Property="CornerRadius" Value="10" />
        </Style>

        <Style Selector="Button:pressed">
            <Setter Property="RenderTransform" Value="{x:Null}" />
        </Style>

        <Style Selector="Border.ButtonBack">
            <Setter Property="Background" Value="#e63462" />
            <Setter Property="CornerRadius" Value="0,0,10,0" />
        </Style>

        <Style Selector="Button.ViewSelectButton">
            <Setter Property="CornerRadius" Value="0,8,8,0" />
            <Setter Property="Margin" Value="0,0,0,5" />
            <Setter Property="Padding" Value="8" />
            <Setter Property="Background" Value="#00000000" />
        </Style>

        <Style Selector="Button.ViewSelectButton:pressed">
            <Setter Property="BorderThickness" Value="0,0,0,0" />
        </Style>

        <Style Selector="TextBox">
            <Setter Property="Foreground" Value="#f7f7ff" />
            <Setter Property="SelectionForegroundBrush" Value="#f7f7ff" />
            <Setter Property="BorderThickness" Value="0,0,0,1" />
            <Setter Property="BorderBrush" Value="#f7f7ff" />
        </Style>
        
        <Style Selector="ListBoxItem">
            <Setter Property="CornerRadius" Value="0,8,8,0" />
            <Setter Property="Margin" Value="0,0,0,5" />
            <Setter Property="Padding" Value="8" />
            <Setter Property="Background" Value="#00000000" />
        </Style>
    </Application.Styles>
</Application>