Non standart Assignment relation looking

[dseverov]

Does it possible to make Assignment relation looking closer to Archimate Standart - with black and smaller circle at starting end ?

Archimate PlantUML looking

Archimate Standart looking

(source: https://pubs.opengroup.org/architecture/archimate3-doc/chap05.html#_Toc10045314)

[Potherca]

It looks like this is caused by using 0-->> as arrow notation, which gives an open circle.

If it is replaced with @-->>, we get the desired result.

I've opened #35 to resolve this.