an screenshot of one of my slack I'm member. It reads: Make Slack spooky We've been in the laboratory cooking up moments of fright for Slack available for the rest of October - 🕯️ Start a ghoulish meeting - 🤡 Set a silly status - 🕸️ Choose a stranger them (a black button) Surprise Me Your Slack will return to its normal state when the clock strikes midnight on November 1.