@Wintermoot: thanks for these suggestions! This is great!
Combine Warp/Map Screens (and add highlighting): I think that's a great idea honestly. I think I originally thought splitting them out would allow for a closer control of functionality, but in retrospect I think it does the opposite. Merging them together and providing a + or - button to zoom in and out would work better.
As for the highlighting, we already have that kind of thing on the Find dropdown. For Portal destinations, you can select Hi-Tech worlds, for example. However, I think having these as separate "highlights" in the dropdown, and adding in passenger destinations, are excellent ideas.
Cargo Price on System Tab: For cargo pricing, you can currently view the price you bought it at in the cargo dropdown from the status bar at the top. I originally didn't think to add cargo sell prices on the system tab, since prices do change every time you jump (the economy is not sitting still just for you after all), however I do see instances where this might be useful so I'll likely add it next to the price, as a P/L column to your currently selected destination. Just on longer trips the price may not be the same as when you set off.