Players with an existing options.txt (i.e. anyone who has launched MC
once) don't get the 'default_packs' applied -- RPO only treats those as
defaults for fresh installs.
Adding 'required: true' to the override entry on the assumption that
the field forces the pack to be enabled on every launch regardless of
player choice. Decompiled the jar for string constants and 'required'
appears alongside 'force_compatible' as a known key.
If the field name is wrong RPO will silently ignore it -- no harm, easy
iteration.
Resource Pack Overrides config field names extracted directly from the
mod's class files (default_packs + default_overrides confirmed via grep
on the .class strings). Config ships through defaultconfigs/ so it
seeds the player's local config on first run and respects later edits.
The 'default_position: TOP' override puts the ReCreated pack at the top
of the enabled-packs list so it takes precedence over the vanilla
ComputerCraft textures.
If the filename or schema turns out to be off when tested, it's a
one-line follow-up to fix.
Matt