Change the image overlay color

Example before:

Example after using red overlay:

Code:

/* -- code start -- */
.homepage--white .image-overlay,.homepage--light .image-overlay {
    background-color: #cc0000
}
/* - end - */

The example hex code #cc0000 is red color. You can choose any valid hex color of your choice.

Hex color code references:

http://www.colorhexa.com/web-safe-colors

https://picular.co/

Where do I add the code?

Use this link to learn where exactly to add this code snippet:

Where to add your CSS style code