Modify back-to-top button

Hi,
what is the best way to modify the back-to-top button (change color, icon etc.)
Thanks
Franz

KeiSRK Hi. Best would be to do this in css. Try with this style:

#toTop {
border-radius: 25px;
border-color: #666;
background-color: #ddd;
color: #222;
}

Thank you!
But I have one more question: how to change the used icon to another fontawesome icon?

KeiSRK Hi. You just need to simply replace the class to the icon class from fontawesome, I can see fontawesome is already loaded on Your site.