Add this code to the Custom CSS field on the Appearance tab of your FAQ widget’s settings:
.eapps-faq-content-category-item:nth-child(1) .eapps-faq-content-category-item-question-text:before {
content: '';
background-image: url("https://www.svgrepo.com/show/86025/delivery-package.svg");
background-size: contain;
background-position: center;
width: 26px;
height: 26px;
display: block;
}
.eapps-faq-content-category-item-question-text {
display: flex;
gap: 10px;
align-items: center;
}
Do not forget to set the correct question number in the 1st line of the code and a link to your icon