Custom Burger Icon

#1. First, you need to upload icon and find icon url.

#2. Next, use this to Custom CSS box

div.burger-inner>div {
    visibility: hidden;
}
div.burger-inner {
    content: url(https://cdn.pixabay.com/photo/2023/10/13/17/10/mushroom-8313142_1280.jpg);
    width: 50px;
    height: 50px;
}

#3. Result