I use a mix of HOT water, dawn, and, as weird as it is, a little bit of laundry detergent LOL. I typically have to scrub though, so, probably not the best for wallpaper.
I seen this coding on quite a bit of pallets, and I am absolutely obsessed with it. Where the navbar is above the head/on top of the page! If anyone is willing to share, is appreciate is greatly!! you can post here or send me a PM!