Slack's new mobile dark mode is available for beta users

Nobody loves staring at a bright white screen all day, which is why dark versions of popular apps are useful for people whose eyes need a break. Workplace communication tool Slack has finally joined the ranks of apps that offer a dark mode — but there's a catch. 
SEE ALSO: How to unlock Facebook Messenger's hidden 'Dark Mode'
Dark mode for iOS and Android Slack users is only available in beta for the present moment. If you're not already in the Slack beta, it's not hard to sign up &md