Merge remote-tracking branch 'origin/master'

core/src/mindustry/type/UnitType.java

@@ -73,7 +73,7 @@ public class UnitType extends UnlockableContent{
     public Color lightColor = Pal.powerLight;
     public boolean drawCell = true, drawItems = true, drawShields = true;
     public int parts = 0;
-    public int trailLength = 5;
+    public int trailLength = 3;
 
     public ObjectSet<StatusEffect> immunities = new ObjectSet<>();
     public Sound deathSound = Sounds.bang;