Is there a way to have a background lighter than a layer on the top of a slide? For example, I want a full background image to be light, and the the video on top of the picture to be full color. Right now, all I get when I adjust the opacity is both of them being light.
Unfortunately, you cannot adjust the opacity of individual elements within a strip. The opacity adjuster applies the change to the entire strip, as you can see.
Best way to accomplish what you're seeking is to adjust the opacity of your background image in photoshop and upload it that way.