A potential animation for Twitter’s long-rumored’undo send’ feature has been discovered by app researcher Jane manualn Wong. Our best look yet at how it might work.

The fix button doubles as a progress bar, which shows you how long you have to undo a tweet before it gets sent. Gmail offers a short window to stop messages from being sent after clicking the’send’ button.

Twitter is working on’undo send’. Timer for tweets pic.twitter.com/ns0kuijpk0.

‘undo send’ has been a rumored part of a paid Twitter subscription tier. It was first mentioned in a user survey last year. It would still offer users the ability to quickly stop a tweet from posting if they spot a last second typo or bad take.

Twitter is exploring ways to reduce its reliance on advertising revenue. The subscriptions could include access to features like’undo send’ and profile customization options.