We have released version 1.6 of DiagramLite. It adds the following new features:

Support for custom arrowheads
The type of the HeadShape, BaseShape and IntermediateShape properties of DiagramLink has been changed from enum ArrowHead to class Shape, which is also used to define ShapeNode shapes. The ArrowHeads class now exposes Shape definitions that correspond to the ArrowHead enumeration members from previous versions. It is also possible to assign any Shapes member or a custom shape as an arrowhead. When used for arrowheads, position (50, 0) in the shape definition corresponds to the arrowhead's tip point. 

Adjustment handles styling
The ActiveItemHandlesStyle, SelectedItemHandlesStyle and DisabledHandlesStyle properties can be used to customize the appearance of selection handles. The HandlesVisualStyle objects returned by them provide sub-properties that control the handles stroke and fill attributes.

Miscellaneous
~ Different arrowhead shapes can be filled with distinct brushes as set through HeadBrush, BaseBrush and IntermediateBrush.
~ The diagram area can be resized automatically to fit the current diagram items as set through the AutoResize property.
~ InitializeNode and InitializeLink events are raised when the user starts drawing a new item and can be used to customize the appearance of nodes and links before they are displayed.
~ Improved drawing speed of links.
~ The AnimatedLayout sample project demonstrates how to use SpringLayout for animation and partial layout.

Registered customers with an active upgrade subscription can download the licensed version from the clients area on our site.
    
A trial version is available for download here: 
https://www.mindfusion.eu/DiagramLiteTrial.zip ;  

Enjoy!