This tooltip in Trello informs users about a trial of new color themes, offering the option to switch back if they prefer the old look. The purple tooltip blends well with the updated theme while standing out enough to catch attention. The message is short and to the point, making it clear that the change is temporary and fully reversible. This reduces any anxiety users might feel about the update. The simple “OK” button provides a frictionless way to acknowledge the change without interrupting the user’s workflow.