compat/options: use traits to prevent slider min/max persistence

Without it, the serialized min and max member vars were set in stone
despite further code changes. Now only the current value is persisted.

Add clamp for cur/min/max slider values.

Store default value as t rather than underlying_t since it's always been
casted anyway.

Add trivial comment, update copyright.

0 files changed, 0 insertions, 0 deletions