I dont know what else I can explain.
I followed instructions in the "Adding custom icons to a theme" section of the doc = but I do not get the same results. But regardless...which method I tried to use, if the documentation is out-of-date - then ok.
Please provide the correct method of adding custom icons to my application?
Icons added via the method above (described in the documentation) do take effect show in the element, nor are available via the Visual Builder, so I don't really know how to debug this further at this time.
Does it matter which method of access I try? I imagine the icons should be available, same was as say custom images, backgrounds, which can be made available via a theme (file upload).