I have been using Mojave Dark Mode for quite a while now. I do like it, but I have come to the conclusion that it really is easier to read and see stuff in the traditional Light Mode. Apparently, scientifically, setting your Mac to Light Mode is more efficient for you eyes and brain. If you are thinking about switching from one Mode to the other, I highly recommend reading this article on the whole subject of Light and Dark Mode. It is pretty detailed, but worth your time if you spend any amount of time on your Mac.