Watermark Exit Transition Duration

Overrides the exit transition duration for an image watermark. When set, this takes precedence over mark-transition-dur for the exit only, while the entrance continues to use -dur or its own mark-transition-in-dur override.

mark-transition-out-dur accepts a float in seconds from 0 to 60. Use mark-transition-out-dur[N] for a specific watermark layer.

Requires an exit transition type to be set via mark-transition or mark-transition-out. Requires mark-end to be set.