The images are not drawn by nickel (which is hoodwinked by nightmode) so it's not affected, if you want images to appear inverted you can always just invert the image itself. Only downside is there is no way to dynamically turn this mode on/off. Once you join the dark side of the force there is no going back ...
I really want to come back to this mod and improve it (and find a better / more intuitive solution for the currently unfathomable random signature hashes) but I don't know when I'll find the time to do so. Until then you'll have to make do as is
