@neygo

you can give the icons a round background

but for this the icons have to be smaller, maximum 25px

.wpforo-forum-icon i { 
    font-size: 25px ! important; 
}
#wpforo #wpforo-wrap .wpfl-2 .wpforo-forum-icon i:before { 
    background:#ff9900; 
    width: 1.8vw;
    height: 1.8vw;
    min-width: 25px;
    min-height: 25px; 
    display: flex;
    align-items: center;
    justify-content: space-around;
    border-radius: 50%;
}

https://www.screencast.com/t/wYpktGznhOv6

Thank you saved my day