?manager:GSourceView2.source_style_scheme_manager ->
?current:GSourceView2.source_style_scheme option ->
?preview:(GSourceView2.source_style_scheme option -> unit) ->
unit ->
object
method box : GObj.widget
method scheme : GSourceView2.source_style_scheme option
method set_scheme : GSourceView2.source_style_scheme option -> unit
end