The document discusses opacity and how it can be adjusted to fade images slightly on the layer it is applied to. The opacity setting is located in the layers panel and controls how see-through the layer is, allowing any elements placed on top of it like text to show through. Adjusting the opacity lower makes the image more transparent.

1. Opacity

2. Ensure that you are working on
the right layer

3. The opacity is
found here, and
can be adjusted
to fade the
image slightly

4. This means that any text which was placed on top
of the image was visible