“撰写”窗格工具栏上的图标

[cpradio]

@Biscuit

That’s what I thought at first, but when I specify a FA icon name from that page it doesn’t display eg: “fa-paw” appears as a blank space, as did the other FA icon names I tried. Whereas if I choose “book” it works.

No, ‘book’ works because behind the scenes it is being changed to ‘fa-book’, for ‘paw’ to work, you would have to use ‘paw’.