Since 0.12.0, NW.js supports multiple build flavors, such as Mac App Store (MAS), Native Client (NaCl), SDK and normal builds.

• MAS flavor is compatible with the requirements of Mac App Store. So you can submit your NW.js app to Mac App Store with the Mac flavor.new for 0.12.0
• SDK flavor has builtin support for DevTools and NaCl plugins. SDK flavor has the same capabilities as the builds before 0.13.0.new for 0.13.0-alpha1
• NaCL flavor supports Native Client (NaCl) plugins, but has no builtin DevTools.new for 0.13.0-alpha1
• Normal flavor is a minimum build without DevTools and NaCl plugin support.new for 0.13.0-alpha1