Adjustment layers in After Effects authored mogrt files.
For titles or graphics that sit on footage, I often apply tints, blurs and other effects to obscure the background image.
Currently, as I understand, adjustment layers do not have an effect on media outside of the mogrt.
It would be fantastic if we could include adjustment layers in AE authored mogrt files, which then effect the footage on layers below when used in Premiere.
Saxon Rix commented
This would be fantastic. Not only for what you describe, but also for custom transitions etc too.