renpy/renpy — pull request #163 by kyouryuukunn (2013-10-06 02:55:44+00:00)
Title: hide voice preferences if has_voice is False

If has_voice is False, "voice volume" is not required so I hided it.
But in tutorial it has the role of introduction of Ren'Py features, didn't hide it even if has_voice was False.