This a theme to dark web pages in the same way, you can recognize every most important things the same with the same effects.Maybe you can choose to change one color in a darker gray, because it can depend your screen or your appreciation, maybe on newer you need to put it darker.
Why do you think that https://github.com/vednoc/dark-whatsapp is a good alternative to DarkChromePastelFluoWebTheme-trick-for-aim-stylish-editor-maybe-or-any-other-editors