It adds some from level 0 of the backrooms also i'm a little new to mod making so don't judge to hard
![The Backrooms [ Blocks ]](/_next/image?url=%2Fapi%2Fproxy-image%3Furl%3Dhttps%253A%252F%252Fcdn.modrinth.com%252Fdata%252FQYtOgnyj%252F8a194cd707d2c664dbfa82bdeb4d2883fdee77ff_96.webp&w=256&q=75)