This mod changes galaxy generation in the way that only 4-planet and 5-planet star systems are available. That doesn't include Minor/Major factions home systems. It also fixes the generation of star types depending on the galaxy age, so you indeed get hotter stars (blue, white, protostars etc) in the young galaxy and cooler stars (red giants, dwarves etc) in the old galaxy. "No star" systems spawn is set to zero. Keep in mind: anything else is unchanged (planet size, temperature distribution, yields etc).
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