From Amiga World 10/1993:
You can improve the display of videos with one of Activa's graphic boards. Rainbow VideoLayer (SI 699) are for Amigas equipped with a Zorro III bus VideoLayer offers 768 x 476/238 and 2MB VRAM. VideoLayer can drive several graphic boards simultaneously and features an eight-bit alpha channel.
Software included: ECS (Enhanced Chip Set) libraries, two paint programs (TVPaint Junior and Painter), DIA (a slide-show program), and drivers for ASDG's ADPro and MorphPlus and Realsoft's Real3D.