The help icon is part of the iridize theme.
Paying customers can download and configure their theme by downloading the design kit.
I want to change the background color of the icon
I want to change the ? to another letter
Add the following CSS rule to the design kit (if it doesn't already exist).
I want to change it to my own custom image
url(data:[your image goes here])
You can use the following service to get the Data URI of your image - https://dopiaza.org/tools/datauri/index.php