Pythia8::SettableTopColourReconnection Node1 Pythia8::SettableTopColour Reconnection - m_modeIn - m_strengthIn + SettableTopColourReconnection() # _init() Node2 Pythia8::SettableColourReconnectionBase # m_crHook + SettableColourReconnectionBase() + ~SettableColourReconnectionBase() + canReconnectResonanceSystems() + doReconnectResonanceSystems() # _init() Node2->Node1 Node3 UserHooks Node3->Node2