While using a child theme and inspecting the category blog meta element that contains the folder icon, I can see that the icon is added on the before element like this:
.cat-links::before {
content: "\f07b";
}
but when trying to add the same CSS to another element:
.inside-right-sidebar .widget_categories ul li::before {
content: "\f07b";
}
I get the weird character instead. Shouldn’t this just work out of the box?