Adding a new entry to the list as so:

"antiqueatlas:bed": {},
...
"antiqueatlas:village": {},
"nocturneblock:textures\gui\markers\bedblue.png": {}

either gives one a pink/black error texture or this error: java.util.IllegalFormatConversionException: d != java.lang.String

Should probably just be nocturneblock:bedblue?

@TehNut nope, crashes the game

Full log?

@TehNut

config file: https://pastebin.com/cxrpQ4E0

Crash report:
https://pastebin.com/5j0fNttc

Full log:
https://gist.githubusercontent.com/Titus-Armillius/c7d44a54d436f6d60f0ced846f2a6907/raw/8e2eac52afc80075e8691e74c0e1b0df393af372/log

Did you solve this?

@TehNut yes

@Titus-Armillius Sorry for the necro, could you tell me how you solved it?