There is a potential modification to the Cargo Space Used meter to give players a better eagle eye on what's using how much space. It would basically use a different colour for each item type in your cargo space: Minerals, artifacts, offline modules. The reason behind the idea would be to allow the player to know how much each is taking up in cargo so that you could get a better viewpoint on what you could rid of or work on, or just in general to know if you're overflowing. Thought of this when I wanted to know how much artifacts was taking up in cargo. You could just add them all up and do the math but that this is a more visual aspect.
When mousing over each individual bar, perhaps maybe show the amount of space being taken up by that section? per say.. amount / cargo space or just amount.
Courtesy Xzien for this bit