Tooltip · Slideout · Feature discovery
Slack’s new feature tooltip is not too intrusive
Slack announces mobile screen sharing in huddles with a small, dismissible tooltip that opens a slideout modal explaining how to use it.
Screenshot added to the library in February 2023; its exact capture date wasn’t recorded, and the product may look different today. Write-up reviewed 22 Oct 2026.
At the time of the screenshot, Slack announced screen sharing from mobile with a small tooltip near the bottom of the huddle screen: "New! Broadcast your screen from your mobile device. See what’s new", with a sparkle emoji and a close button. Tapping it opens a slideout modal from the bottom of the screen, "Mobile Screen Share", tagged NEW. It holds an illustration of a hand tapping a phone, one instruction ("Tap Options and select Share Screen to broadcast from your mobile device.") and a Got It button.
Why it works
- Non-disruptive: the first message is a slim tooltip that needs no interaction, so the huddle carries on undisturbed.
- Good formatting: a bold "New!" and a sparkle emoji catch the eye without making the tooltip any bigger.
- Good use of visuals: the slideout shows the action in an illustration and explains it in one sentence, so users learn it in seconds.
More on this pattern: new feature onboarding and tooltips.
