I have tried importing new fonts in aem 6.2 under /etc/designs/myapp/fonts and /apps/myapp/fonts where fonts is sling:folder and then made the font entry GFX font Helper. The fontlist node is created automatically in the fonts folder. But when i try to use the few font in the font-family it shows me no changes. I have even downloaded various fonts from internet and used them but still no changes. I feel that the custom fonts are not working.