Divi Accordion Toggle Icon Change When Opened

css

Divi accordion plus (+) icon goes out when you click an accordion title.
If you want to remain there and be changed to minus (-), add these CSS lines to style.css or on the same Page > Advanced > Custom CSS

.et_pb_accordion .et_pb_toggle_open .et_pb_toggle_title:before {
    display: block;
}
.et_pb_accordion .et_pb_toggle_open .et_pb_toggle_title:before {
    content: "\4b" !important;
}