Yeah, it’s very odd that Ikea sells no plain white backing for the Kallax (and matching backing for the other Kallax colors). Considering how modular and customizable so much of their stuff is, I feel like they’re leaving money on the table. I’d have happily bought a backing from them had they sold it lol
And yeah, the LED lights work wonders for me. I like a dark environment to play games in, but not pitch black, and having some faint light slowly changing colors while I play is lovely, I really liked it with my old setup, too. There’s not even that many LEDs - I strung a single strip along the top of the back of the Kallaxs, and a little bit around the corner on the left where there’s a cutting point. It’s plenty bright as is, and yet I still have quite a few feet left on the roll lol