Hey, so uh... I know you said you're not looking for more suggestions, but I think some improvements to smart cursor would be an extremely impactful one that could be added in without too much trouble
forums.terraria.org

Better Smart Cursor Behavior
I would like to preface this by saying that smart cursor works perfectly fine like 90% of the time. It's amazing for digging with how it automatically diggs a tunnel big enough for the player no matter what direction you go, it's great for pretty much every other tool, and it's got a ton of...