What underlying technology is used for the rendering?

[Profound Logic]

Question:
What underlying technology is used for the rendering if it isn't ExtJS? Specifically, I am wondering if it is a popular framework or if it is custom only to Profound Logic.

Answer:
The UI framework is custom developed and uses no other framework. It's done using JavaScript/AJAX style components which Profound Logic developed in-house to work well with RPG / Display File programming concepts.