TNO has many many variables. It would help if you told us what you are trying to fix exactly. A lot of what you might want is in scripted effects.That's great. Unfortunately, I'm trying to fix code that looks like this
USA_WAL_failed_bill = yes
Is a scripted effect meaning that in the scripted effects folder there is a bracket like so.
USA_WAL_failed_bill = {
#The effects are in this bracket
}
This is done in HOI4 to save space where you use the yes command to call on a coding block. TNO does this often.