all you would need for this is a new 'lightning' effect computer + module
a lightning effect block linked to a beam weapon and triggered by a logic circuit would achieve the same effect and could be colored using the existing system
although for purely aesthetic use the effect would need to be limited to not pass through blocks of the entity its attached to so you dont get beams passing though your ship and out into space
a lightning effect block linked to a beam weapon and triggered by a logic circuit would achieve the same effect and could be colored using the existing system
although for purely aesthetic use the effect would need to be limited to not pass through blocks of the entity its attached to so you dont get beams passing though your ship and out into space