This behaviour tree is for an AR project to define the behaviour of a abyssal monster chicken that you can interact with. 

Learnings: 

• First time I used Unity's new and still experimental VisualGraph feature
• I have explored the VisualElement and IMGUI systems a lot
• How a behaviour tree works (who would have thought?)
• A lot of editor and tool scripting

For anyone who does not know about the VisualGraph feature. This offers a basic Graph system with nodes that can have input and output ports. Apart from that I have made everything myself (Node looks, titles, functionality to delete and add ports etc.)