Graph Link Types Plugin not working

Hello community,

What I’m trying to do

I’m trying to get the Graph Link Types to work but I don’t see any additional attributes appearing in my graph. I’m very new to Obsidian, so I guess I just do something wrong.

Things I have tried

I have installed dataview plug in and graph link types and enabled both of them. In my note, I write:
related:: [[C.S. Lewis]]

But I don’t see “related” in my graph. I hope someone can help. The plug-in is exactly what I was looking for.

What did you do wrong?