I set out to just add a simple feature on the ship screen to show what a square with a purple outline meant. The purple outline means you've done a mineral scan on that square and there was nothing on the screen to indicate what it meant to the player, so I was just going to add a purple square off to the side and put a label that said "PSMS Peformed" next to it.
I realized that's not really exactly what I wanted to do, so I was off down a rabbit hole adding new functionality before I knew it. I already had a popup area that showed when you were over a colony on the planet, so I wanted that same popup to show the results of lack thereof for a PSMS (Planet Square Mineral Scan). While I was doing this I realized I had designed the database tables badly with too much overlapping information, so I ended up dropping several columns and adding some to other tables and then had to go back through all the other screens to see what that broke.
In the end, when you scroll over a planet square with the cursor that has been scanned, the information will now show up, as seen below. I think it worked out much better than just putting a purple square on the screen and then you having to go to another screen to see what was up.