I don't know if this is the right area but here it goes.
The area where the software buttons are located are not being affected by anymore. I don't know if the problem is with Twilight per se or something else, but I do know the problem appeared right after I tried using , I was messing around with it, seemed like a good app but I was enjoying the wallpaper I was previously using, but when I went back to it this glitch appeared, I'll link a screenshot of the phone that better illustrates it.
On the lock screen it seems to work without problems:
I know it's a minor bug but it's one of those little things that can be very annoying.
I've already tried clearing the data both from Twilight and Muzei, and removing and re-installing them, did not work.
I don't know if it matters but I messed around with the blur and dim settings on Muzei that first time I used it, although since clearing the data and re-installing it they are back to default. Also, the problem persists with other wallpapers, even with the Muzei ones.
Also, using a Motorola Moto G with KitKat, not rooted and stock rom and launcher.