I have performed a transition from my operational activities to my system analysis. Supposedly, all the new transferred function are supposed to be blue (= doesn’t belong to the system) but some random ones are green (=belong to the system, which is wrong).
I believe that by default the transitioned Operational Activities would be assumed to be System Functions, and therefore green. But there may be some circumstances where Capella might do this differently — maybe someone else can advise on this. However, you can change the allocation by simply re-allocating functions to either the System or any System Actors you have in the SA and this will change their colouring automatically.