'The default, transformed by prepare_value() and the theme overrides.'

def themed_default(self, cls, name, theme_overrides):

    overrides = theme_overrides
    if ((overrides is None) or (name not in overrides)):
        overrides = cls._overridden_defaults()
    if (name in overrides):
        default = self._copy_default(overrides[name])
    else:
        default = self._raw_default()
    return self.prepare_value(cls, name, default)
