How do animation classes work with Inner Glass?

When you apply a whole-module fade to a module that uses Inner Glass over an Outer photo, the glass should stay frosted while the card fades or slides into place. Standard fade directions are supported, and a-scale-in becomes a fade-only effect because scaling would break the frost; a-parallax-outer can still move the Outer photo. Heading-only animation classes continue to affect only the heading. Add SW Helper Animation once in the global footer or as the last module on the page, and put the animation classes on the glass module or heading—not on the helper.