Overlays are information that is displayed on top of the strip region. There is a toggle to display or hide all overlays for the strip region.
Shows the Name on the strip.
Shows the path to the strip file on the strip.
Shows the length of the strip in frames on the strip.
Shows overflow bars of "extra" content from either cutting or sliding strips.
Show animation curves for opacity and volume values as darkened sections of the strip.
Displays a preview of the strip contents on top of the strip for movie and image strips. To draw thumbnails, this overlay has to be enabled and the strip's height must be tall enough. See the User Interface documentation on how to adjust the height of strips.
The larger the strip's height the bigger the thumbnails are displayed. The number of thumbnails displayed depends on the thumbnail size and the strip length (which depends on the zoom level).
Show vertical and horizontal lines in the sequence timeline to add visual separation and a dimension of scale to the timeline.
Set waveform per strip configured with Display Waveform.