AUI static control refinement: Custom drawn static controls, whether invoked explicitly with the MBF2_CUSTDRAW flag or implicitly by specifying a formatting option, like MBF_VCENTER in a multi-line control that isn't supported by the standard static control, now at least attempt to support the MBST_DISABLE state. It changes the text to a middle gray which is guaranteed not to be the same as the background, but it isn't as sophisticated as the built-in control's disabled text, which has an embossed look.
