Changing default button disabled appearance, see https://github.com/phetsims/sun/issues/658, https://github.com/phetsims/scenery/issues/1112
Changing default button disabled appearance, see https://github.com/phetsims/sun/issues/658, https://github.com/phetsims/scenery/issues/1112

phetsims/sun,phetsims/sun,phetsims/sun