MainWindow.xaml

<?xml version="1.0" encoding="utf-8"?>
<Window
    x:Class="Resolved.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Resolved"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Title="resolved.ce">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid Grid.Row="0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            <SelectorBar Name="MainSelectorBar" Grid.Column="0" SelectionChanged="MainSelectorBar_SelectionChanged" FontFamily="Outfit" IsEnabled="False">
                <SelectorBarItem Text="resolved.ce" TabIndex="0" ToolTipService.ToolTip="Search problems" FontFamily="Outfit"/>
                <SelectorBarItem Text="Level" TabIndex="1" FontFamily="Outfit"/>
                <SelectorBarItem Text="Sprout" TabIndex="2" FontFamily="Outfit"/>
                <SelectorBarItem Text="Class" TabIndex="3" FontFamily="Outfit"/>
                <SelectorBarItem Text="Tag" TabIndex="4" FontFamily="Outfit"/>
                <SelectorBarItem Text="Bookmark" TabIndex="5" FontFamily="Outfit"/>
                <SelectorBarItem Text="Setting" TabIndex="6" ToolTipService.ToolTip="Change settings" FontFamily="Outfit"/>
            </SelectorBar>
            <Border x:Name="TitleBarBorder" Grid.Column="1" />
        </Grid>
        <Frame Grid.Row="1" x:Name="MainFrame"/>
    </Grid>
</Window>