I think we need to pressure Steve to incorporate some of the features from the mod... personally I really need the color part of this mod as I find Steve's original colors to be really bad for my eyes.
I agree that this game could really do with some Quality-of-Life improvements (such as colour and font settings that allow more of us to play), however unfortunately it's been incredibly hard to get any traction on this - Steve was so anti-mod when C# first came out that he threatened on multiple occasions to just not publish the game at all and keep it to himself. It's the reason the subreddit, forum, and Discord had complete bans on even talking about mods for a while.
That said, it'd obviously fine for Steve to do this - it's his game and he isn't even paid for it. He can do whatever he wants.
So perhaps the dialog that originally allowed modding to happen can be re-opened, and some avenue to allow modding could be introduced? I'll put my money where my mouth is and can offer to actually do some of this - like many other people here I have some background in software development - if that's at all helpful. I just want to be able to play the game again, to be honest.