I downloaded xcode 10 beta and installed it on my macbook which is running on macOs 10.13.4 High Sierra. I tried to enable dark mode on xcode 10, but i could find how to do
It'll become very ugly if you force to enable dark mode on High Sierra, and I have changed the color scheme before...
defaults write -g NSWindowDarkChocolate -bool TRUE
defaults write com.apple.dt.Xcode NSWindowDarkChocolate -bool true