First OS X 10.10 Yosemite update offers very early look at 'dark mode'It was discovered on Tuesday that the second OS X 10.10 Yosemite beta contains code to activate an early version of "dark mode," which changes the translucent light gray menu graphics to a darker shade closer to black.
Some two weeks after Apple issued the first Yosemite beta at WWDC, developer Hamza Sood discovered that today's update contains code for dark mode, which can be activated through a simple Terminal command.
Developers can test out the new capability by entering the following code into Terminal, logging out and logging back in:
sudo defaults write /Library/Preferences/.GlobalPreferences AppleInterfaceTheme Dark. To return to the default light gray graphics, change "Dark" to "Light" and perform a login cycle.
As seen above, dark mode is most definitely a work in progress as borders of icons shown in the menu bar are not correctly displayed.
Apple will introduce dark mode when Yosemite launches this fall as an alternative view for users who prefer not to be distracted by OS X's menu and dock. The new functionality may be most important for imaging professionals.
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