Hey, there. I'm creating a huge collage for a future wallpaper. All of my image assets have a transparent background to blend into the canvas background. Here's an example with Airi Momoi from Project Sekai as a floating head.

I thought of giving a unique color overlay for each image. However, adding one removes the transparent background of the image.

Is there any way I can make the color overlay to only affect the colored part of the image and not the transparent part?

I already know the masking method, but I don't want to duplicate every single image as it's own layer and group. How can I get the same overlay effect with just the layer of the image itself?

Please and thank you.