New customization tool allows users to add additional style modes to Windows 10 Learn More Stardock announced a new customization tool today. Curtains allows users to apply new styles along the lines of Dark Mode and Light to Windows 10. Taking advantage of the groundwork built to support light and dark mode, Curtains includes several new styles including Fluent, Cairo, and Crystal mode that enhance the look and feel of the Windows UI along with apps that already suppo...