Every time I want to add custom icons to fit my project theme, I need to use external tools like icomoon to define the icons and create font file, then reference this font file in my theme, and add classes to the icon so it show the custom icon, instead of OutSystems' one.

It would be much easier to import icons using service studio, and selecting the icon form the "Pick an icon" menu embedded in each icon widget.

I am not saying it should be the same widget, but could be an alternate widget made specifically for importing custom icon.