This mod is an old project in need for a rewrite.
Welcome to LTH, always known as Lixo Toxico Horrivel (in portuguese, Horrible Toxic Trash). Its composed of 3 mods, Mark I, Mark II and Mark III. Released in Curseforge around June 2023.
It adds Rainwood, which is rainbow wood. For now, thats all. Canceled the project right when i was developing 1.3