BenQ actually calls it "Wall Color Correction", and offers a small selection of presets: Light Yellow, Pink, Light Green, Blue, and Blackboard. I imagine "Light Yellow" would also work for light beige. Other wall colours could be tweaked for with the usual projector colour adjustments, on the BenQ or on other projectors as well.

But.. on my BenQ at least, I have yet to figure out how to actually get it to permit me to adjust Color/Tint/Sharpness. Those menu items are grayed out here. The manual says "According to the detected signal type and selected picture mode, some of the below functions may not be available." I'm betting they're only available when the analog VGA input is used.