This has a black background, with fireworks that fade in and out of the background.
Changes the overall blend factor. Use this to fade in and out the blend layer.
As our eyes scan different parts of the portrait, Mona's smile seems to fade in and out.
Use captions strategically. Add multiple captions to your introductory slide and then carefully set their timing so they fade in and out, one at a time.
It might be helpful to have certain dialogues fade in and out or to overlap sounds with dialogue.
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