With all sorts of umbilicals waiting to be connected to the engineering systems during starbase layovers, it might be a good idea to have a sighting station or two on the ship side of things. Probably not two dozen, though.
The dual nature of the shapes - dark and bright versions exist of them all - in a scattershot pattern might lend more credence to the window theory than to the sensor orifice one, as there would be a more understandable reason for darkening a window than a sensor thingamabob, especially in cases were "blackout" seems to affect an entire quarter of the vessel while dialogue makes no mention of sensor blind spots. We just have to decide whether it's actually a threefold nature: open and bright, open and dark, plus shuttered to invisibility...
Timo Saloniemi
The dual nature of the shapes - dark and bright versions exist of them all - in a scattershot pattern might lend more credence to the window theory than to the sensor orifice one, as there would be a more understandable reason for darkening a window than a sensor thingamabob, especially in cases were "blackout" seems to affect an entire quarter of the vessel while dialogue makes no mention of sensor blind spots. We just have to decide whether it's actually a threefold nature: open and bright, open and dark, plus shuttered to invisibility...
Timo Saloniemi