I've actually made a separate post for this, but was pointed here, and decided I might as well post it here.
One suggestion I have related to the language part of accessibility is removal of one of Terraria's possible title messages: "Obsessive-Compulsive Discovery Simulator". It's yet another one of those OCD "jokes" that trivialize OCD and make it seem like a funny and minor thing, as opposed to the debilitating disorder that it actually is. Going to get personal here, but I suffer from OCD myself, and after I deleted mod config folder after configuring everything for 348119th time and launched the game, being greeted with that title messages felt... very awful, to say the least.