Noob question: Does anyone have any tips for stitching on black aida?

I'm working on this new piece on black aida and I'm making pretty slow progress just because it's difficult to see what I'm doing.

I'm sitting by a pretty bright light and working over a brightly colored tray and that's helping some, but I wondered if anyone knew any other tricks to working with darker fabrics?

The only thing I'm finding online is people saying to use a light box, but I really don't want to invest that much if I can help it