I'just starting from scratch now with Debut and I can already see that the Image with Text Overlay has a grayish color on the image. How can I remove that?
Go to Theme Settings => Color: IMAGE OVERLAYS -- this is where you may want to fiddle with opacity.
I'm having trouble with this also! I have turned my opacity down to 0%, in Colour settings. It does change the Collection pics but not just the first big pic I want to put under the Header.