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
jw382 is a little confused about the Dark Mode, yes you can have a dark Mode, like Midnight, but not the new Xcode 10 beta Dark Mode, where everything is in a dark area. Maybe this other like will help : How do you change Xcode 10 Beta to the new "Darkmode"?
You need to install MoJave 10.14 beta to make you mac Dark Mode first.
Not possible to fully in High Sierra but if you use macOS Mojave (10.14.+), you can enable dark mode only for Xcode 10 using this command line.
defaults write com.apple.dt.Xcode NSWindowDarkChocolate -bool true
Using this command line on lower version of macOS will partially break your Xcode interface.
(tested with High Sierra V10.13.4)
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
You need to follow those steps:
For those of you like me looking in 2020 who couldn't find how to enable dark mode even on dark-mode-supporting systems, it's super simple. Just go to preferences -> general. There you can set Xcode's appearance to always dark, always light, or system-dependant.
is not related to your XCode its related to macOS , the feature available from 10.14 Mojave onwards , for detail info you get from here
Mojave Release date
Apple said that the developer beta for all software would be made available on 4 June, while the public iOS 12 beta will be available later in June.
Mojave: New features
In particular, Apple appears to have focused on enhancing the Finder and Quick Look. But other new features are welcome, in particular Dark Mode, which we will look at first
Dark mode
A Dark Mode is nothing new - there has been a Dark Mode available since El Capitan, but it only changed the appearance of menu bar and Dock. However, the new Dark Mode is what everyone had been calling for.
In High Sierra, Dark Mode adjusts the colour of the menu bar and dock, but little else. The Dock's translucent background becomes darker, the menu bar's drop-down menus are darker (although still translucent).
Not all third-party apps offer support for the dark menu bar, and even some Apple apps, such as Safari, currently feature a bright translucent sidebar.
The Dark Mode in Mojave, will be applied to all elements of the interface, in every app, system-wide. Users can choose whether to turn it on
for enable and disable the Dark Mode for reference purpose I taken the answer from here
Short answer
click on > System Preferences from the menu and choose General. Here choose the second option under ‘Appearance’ to toggle into dark mode, step by step tutorial you get here
Click on Apple Menu on your Mac
click on System Preference.
click on General.
Next up, check out the second option next to Appearance. Simply select it to activate Dark Mode on your macOS.
Disable the dark mode
follow the above 3steps and finally deselect the second option that’s right next to Appearance.