default lights name
change radius and intensity of lights
regroup main hall lights

rotate engine room o2/h2 gen pair
set project position for ship blueprint

bug fixed
add gravity room light
ㄴ change light color

redesign hanger.
change passage at center
add 1more refindery
fix ungrouped airlock doors
redesign gravity gun room and add GG spot light

reconnect detached gatling turret conveyor blocks
and move hanger lights

add hanger stair