The Meaning of Life, the Universe, and Everything.
I come to you, my dear Minecrafters, for but one thing. One important and essential request for a mod, or at the least help in making the mod myself. it has huge impact on me continuing to enjoy this game. I won't lie to you, it is a monumental task, as it has likely never been done before but I have faith...
I ask... to be able to place a door on top of leaves.
The vanilla doors can't be modified to be like that, but custom doors can be made like that - I've done it. If you want to make the doors yourselves, you will need to extend vanilla doors and override necessary methods as needed.