Solution : https://service.sap.com/sap/support/notes/692836 (SAP Service marketplace login required)
Key words :
symptom popup menus, irj\root\portalapps\, lafservice\themes\portal, lafservice\themes\portal\<, design root folder, folder>\<design id>, portal design, folder named, thepopup menu, font-family
Related Notes :
589013 | EP 6.0: Central Note for Themes and Theme Editor |