Big night yesterday for the apple crunchers. If Apple has indeed deployed the second beta version of its mobile platform, it has done the same with OS X 10.10 Yosemite . Yes, and if the novelties brought to this new version are a little less numerous, it is finally possible to test the “Dark Mode” of the system. How? 'Or' What ? Using a simple command line. And if you want to know more, well you couldn't be better.
First of all, know that you will have to update your installation to OS X 10.10 beta 2 to take advantage of this famous mode. It is obviously not supported by the first beta, at least not if I believe my few tests.
To do so, it is not very complicated since it will suffice to launch the Mac App Store and browse through the updates to start the installation. The procedure took me something like twenty minutes on my MacBook Air.
Access Yosemite's “Dark Mod”
When everything is in place, simply go to the “Applications” folder and then to “Utilities”. This is where you will find that good old terminal , the very one that will get you there. Just click on its icon, and wait for it to appear on the screen.
Then paste the following line, and press the “Enter” key on your keyboard:
sudo defaults write /Library/Preferences/.GlobalPreferences AppleInterfaceTheme Dark
OS X will then ask you to enter your account password. Just comply, then validate the operation again by pressing the “Enter” key on your keyboard.
And there … Nothing at all. The interface will not have changed a bit and it is quite logical since you will have to restart your session to take advantage of “Dark Mode”. Don't hesitate to do it twice if it doesn't work the first time.
Still a few small bugs
The “Dark Mode”, as its name indicates it well enough, will simply obscure the interface of Yosemite by intervening on the colors used by the various elements which compose it. With a beautiful translucent dark gray for the menu bar and for the dock.
The thing is, not all of the icons have been updated yet. If you activate this mode, you will have trouble distinguishing the battery status of your mobile phone, for example, or of the WiFi network. It's a bit annoying, especially since it's impossible to go back without formatting your machine.
Just kidding, of course, but admit you had a little hesitation. I know, I have a special sense of humor. Downright shitty? You are not necessarily wrong.
If you want to switch “Dark Mode” and go back, it's not complicated, you just have to throw another command line in the terminal:
sudo defaults write /Library/Preferences/.GlobalPreferences AppleInterfaceTheme Light
Here again, you will have to remember to restart your session for the change to be taken into account.
And now, voila !