I finally added proper text formatting! I was originally trying to fix a bug where the text on-screen wasn’t syncing with the text in the backend, and by fixing that I got the formatting to work properly! What happend was that the textbox control that held the on-screen text wasn’t syncing properly, so I replaced it with hotkeys that trigger the buttons instead, which made all the button input logic apply to the keyboard! After doing that, I quickly implemented basic negative number support as well. My code was also getting pretty messy, so I moved the calculator engine into another file to keep things clean. Overall, I’ve gotten past a huge roadblock! Now, it’s time to finish that history menu.