JSONEditor.defaults.iconlibs.foundation3 = JSONEditor.AbstractIconLib.extend({
mapping: {
collapse: 'minus',
expand: 'plus',
"delete": 'x',
edit: 'pencil',
add: 'page-add',
cancel: 'x-circle',
save: 'save',
moveup: 'arrow-up',
movedown: 'arrow-down'
},
icon_prefix: 'fi-'
});