Activatable.setUseActionAppearance

void setUseActionAppearance(bool useAppearance)

Sets whether this activatable should reset its layout and appearance when setting the related action or when the action changes appearance

#GtkActivatable implementors need to handle the
#GtkActivatable:use-action-appearance property and call [gtk.activatable.Activatable.syncActionProperties] to update activatable if needed.
Parameters
useAppearance whether to use the actions appearance