
Maybe blue connection points instead of green for attachments?
Space ships are ladies so in addition to a color adjustment I suggest a graphical adjustment for the color blind where the connection points on structures are “female” (gripper/slot) shaped and attachment structures “male”.
This in order to make it clearer what structure needs to be connected by strut, connector, or armor block and which ones need to be attached to a station. The command block in particular is prone to causing this confusion.
As an extra benefit, struts, connectors, and armor blocks could get a hermaphrodite connection point visualizations?
I have probably dragged the analogy too far.