Location: 08b Windows.
The Benton/Van Dusen juggernaut has rolled over my puny defenses and forced the manufacture of Garage Door Arch JAM8, French Casement JAM8, and < strong >Ext Fr Dbl ArchTran JAM8, which, pardon the shorthand, is a double french door with an arched transom.
The moral of the story: If you need something, ask!
But that's not all. I can also offer Arch Window JAM8b1, located at 2 Project LIB : Stevens. The 'b1' means beta. Which means it's not perfect. You're welcome to it, but there's definitely room for improvement. At least the interface and features are consistent with the other windows.