Slack today launched dark mode for all desktop apps, including Mac, Windows, and Linux. This follows the company previously making dark mode available on iOS back in June.
To find dark mode in Slack on Mac, click on your name in the left sidebar > Preferences > Themes. This will show you a quick preview of how everything will look, and then you can choose to switch to dark mode or stay in light mode.
The company has also added new themes specifically tailored for dark mode, all of which are also available today. There is no required update to see dark mode on Slack, but you'll need to restart the app to get it to appear.
Slack also confirmed that in the near future you will be able to set Slack to switch automatically between light and dark mode, based on your macOS settings. The company didn't provide a specific release date for this feature but said it will be available fairly soon.
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[edit] Moments after I posted that, Slack flashed (reloaded) and Themes appeared. Just have to wait, I guess. Still v4.0.3.
[doublepost=1568308078][/doublepost]It's also got some usability issues. Largely the result of being a "fake" (Electron?) app, most likely.
[doublepost=1568316226][/doublepost]Slack has worked hard to improve resource usage on the Mac lately, and I'm super happy with the progress that they have made. Interesting that the "Slack Helper" process takes up nearly 3x the memory as the Slack app itself. How is that helper helping me??? :p