Add project files.

Nodify/Themes/Styles/KnotNode.xaml

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+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:local="clr-namespace:Nodify">
+
+    <DataTemplate x:Key="DefaultConnectorTemplate">
+        <local:Connector Cursor="Arrow" />
+    </DataTemplate>
+
+    <Style TargetType="{x:Type local:KnotNode}">
+        <Setter Property="Background"
+                Value="Transparent" />
+        <Setter Property="Foreground"
+                Value="DodgerBlue" />
+        <Setter Property="BorderBrush"
+                Value="Transparent" />
+        <Setter Property="Padding"
+                Value="15 5" />
+        <Setter Property="Cursor"
+                Value="SizeAll" />
+        <Setter Property="ContentTemplate"
+                Value="{StaticResource DefaultConnectorTemplate}" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="{x:Type local:KnotNode}">
+                    <Border Background="{TemplateBinding Background}"
+                            BorderBrush="{TemplateBinding BorderBrush}"
+                            BorderThickness="{TemplateBinding BorderThickness}"
+                            Padding="{TemplateBinding Padding}"
+                            CornerRadius="3">
+                        <ContentPresenter />
+                    </Border>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+</ResourceDictionary>