v3.0.52

The Settings menu now has an option to choose which memory card slot to save/load to/from.

When trying to load/save settings, checks will be done to make sure that the game's vanilla code isn't currently doing memory card stuff, as trying to do other stuff at the same time could break things.

When this project is loaded, the settings file can now be loaded from either memory card slot. If a settings file exists on both memory cards, then the one in slot A will be used.

Made several adjustments/fixes to the memory card code.