WPF Node Graph Custom Controls

NodeGraph.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:Controls="clr-namespace:WpfNodeGraph.GraphEngine.Controls">

<!--    Node-->
    <Style TargetType="{x:Type Controls:Node}">
    </Style>

<!--    Hook-->
    <Style TargetType="{x:Type Controls:Hook}">
    </Style>
    
<!--    Connection-->
    <Style TargetType="{x:Type Controls:Connection}">
    </Style>
    
<!--    Node Graph Canvas-->
    <Style TargetType="{x:Type Controls:NodeGraph}">
    </Style>
    
</ResourceDictionary>