bgmVolume property

RxDouble bgmVolume
final

User-chosen bgm volume (ENH-95) — persisted via StorageKeys.bgmVolume. This is what a duck restores to once every ducked SFX has finished, and what startBgm/resumeBgm play/resume at. Orthogonal to muted: muting never resets this, so unmuting always restores the user's chosen level.

Implementation

final RxDouble bgmVolume = _defaultBgmVolume.obs;