In the Slide Sorter view, as well as on the Slides tab of the Normal view's left pane, you will see indicators beneath a slide thumbnail.

Slide Sorter slide indicators

The indicators that may appear include:

  • A star, which indicates an animation scheme, custom animation, or slide transition. You can click the indicator to preview the animation.
  • A time, which indicates how long the slide will appear before advancing automatically. This is configured in the Slide Transition task pane in the Advance Slide section.
  • The slide number.
  • A hidden slide indicator, on top of the slide number, showing that the slide is hidden.