Returns the current modifier style for the widget. (As set by Widget.modifyStyle.) If no style has previously set, a new gtk.RcStyle will be created with all values unset, and set as the modifier style for the widget. If you make changes to this rc style, you must call Widget.modifyStyle, passing in the returned rc style, to make sure that your changes take effect.
Caution: passing the style back to Widget.modifyStyle will normally end up destroying it, because Widget.modifyStyle copies the passed-in style and sets the copy as the new modifier style, thus dropping any reference to the old modifier style. Add a reference to the modifier style if you want to keep it alive.