PeriscopeOptionsPanel.xaml

<UserControl x:Class="PeriscopeSitePlugin.PeriscopeOptionsPanel"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:PeriscopeSitePlugin"
             xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
             mc:Ignorable="d"
             d:DataContext="{d:DesignInstance local:PeriscopeSiteOptionsViewModel, IsDesignTimeCreatable=True}"
             d:DesignHeight="450" d:DesignWidth="400">
    <Grid>
        <CheckBox Content="@のあとの文字列を自動的にコテハンとして登録する" IsChecked="{Binding IsAutoSetNickname}" HorizontalAlignment="Left" Margin="31,55,0,0" VerticalAlignment="Top"/>
        <CheckBox Content="入室メッセージを取得する" IsChecked="{Binding IsShowJoinMessage}" HorizontalAlignment="Left" Margin="31,95,0,0" VerticalAlignment="Top"/>
        <CheckBox Content="退室メッセージを取得する" IsChecked="{Binding IsShowLeaveMessage}" HorizontalAlignment="Left" Margin="31,115,0,0" VerticalAlignment="Top"/>
    </Grid>
</UserControl>