What I mean is that current if one unit is behind another, the unit in front can block out the unit behind's star.
See the ships in this image. The one in the front is fine...
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Here I circled them, the two further back (circled in red) are partially obscured by the ships in front
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Often, when units are moving or turning the star gets hidden behind the unit it's attached to, too.
The code that attaches it to the unit in the rulesmd.ini is