Wondering if there’s some CSS magic that could add a low-opacity black coating over all header images (front page jumbotron, blog archive, individual blog posts). I’ve been manually lowering the exposure & contrast of these images, which takes a little more work & is a little limiting (e.g., I’d like for the blog post featured images to be full-color when previewed, but faded when used as the header of the post page). Thoughts?
You can use the following CSS code to add a color overlay to the Jumbotron image by going to Appearance > Customize > Additional CSS and pasting it there.
I have a problem using the last solution on Illdy theme.
The overlay appears when I am in the admin wordpress in Appearance -> Customize -> Additional CSS.