I just tried and found the .apk from XDA but it won't install. I have unknown sources all allowed from my browser, etc. Curious to see if anyone has got this to work.
Same with me. I downloaded the Pixel wallpapers 19 .apk, and but it would not install. I could get it starting to install, but then at the end says App not installed.
Then I tried that Slicer .apk thing, took awhile to get one that would install, it allows you to set very specific settings for the wallpaper, but I couldn't get the location set, which is the one you need for the orange color. I believe because I don't have that special wallpepr .apk installed.