I have the following Activity Diagram in which I have changed the color of a few arrows:
@startuml
:Foo;
-[#green]->
split
-[#green]->
(A)
:ack(o)>
split again
-[#green]->
(B)
:i := i + 1]
:ack(o)>
split again
-[#green]->
(C)
:nak(o)>
end split
:finish;
@enduml
How can I change the color of the top horizontal line generated by the split command?