PRO Modules has a module named Image/Icon. You can use this module if you wish add an image or an icon within a stylish background or a suitable color theme.
If you select to add an icon using this module, you will find the Preset 1 and Preset 2 options besides the Icon color presets under the general settings of the module.
These settings allow you to match the icon and its background color to that of the theme you are using.
Preset 1: When you select this option, the icon will remain white, while the background will inherit the primary color you set in the UABB Global settings.
Preset 2: When you select this option, the icon will inherit the primary color you set in the UABB Global settings, while the background will remain white.
You can take a look at the following image to see the color that gets inherited from the UABB Global settings.
To know more about the UABB Global settings, you can refer to the article here.