Packs like the 12 FREE Luma Fade Transition Presets can be imported into your Premiere Pro presets folder.
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Follow these steps to use the built-in effect without any third-party plugins: How to Use Luma Key Effect in Premiere Pro | EP 58 Packs like the 12 FREE Luma Fade Transition
Creating "Sam Kolder style" luma fade transitions between two clips. luma key premiere pro free download