Utiliser les icônes Font-Awesome 4 dans le thème tout en conservant FA5 ?

Dev
4

Thanks, @Falco, and @dax, but how would I reference that uploaded SVG icon?
Currently, I’m trying to do this:

api.replaceIcon('shield-alt', '$old-icon);

But it leaves a blank space instead of loading the SVG icon. Am I doing something wrong?