Night mode everything

[David Miller21]

I am looking for a app or setting that will change the default white color in apps like chrome to black or inverted. the keyboard, backgrounds, icons, and everything I know about dark apps like twilight that's not what I need I have a Samsung GS4 android lollipop 5.0.1 I don't want to root my phone or custom Roms or anything like that it will mess up my phone these white backgrounds give me eve strain basically I want to night mode everything including the os but still have colors not b & w mode. any help would be appreciated