9 Slice skins are the most common way of using GUI elements.

We are proud to announce GUI Generator, available on the Unity Asset Store : http://u3d.as/8xV

Quickly and easily generate as many of your own custom GUI elements as you'd like. Great for prototyping or even final GUI elements like buttons, panels etc.

Add this to your noesis development cycle for speedy & great looking results.

NoesisGUI doesn't require any external tool to provide 9-slice skins

As you can check in our 9-slice sample: viewtopic.php?f=12&t=273

Yes, exactly it's quite capable of using them, GUI Generator, however, creates the actual skins themselves (the textures / sprites) which can be used as 9-slice skins.

Anyway, it would be nice if this tool could generate the XAML automatically. It would be even better having a UserControl for 9 slice.

Yes, exactly it's quite capable of using them, GUI Generator, however, creates the actual skins themselves (the textures / sprites) which can be used as 9-slice skins.

Could you add support for noesisGUI?

Right now it'll work "out of the box" with noesis, the only integration required would be creating a xaml and GUI Generator provides hooks for external scripts (eg nGUI and uGUI already supported through external scripts).

It will already work with noesis, however adding true noesis-instantly-ready (by auto-creating the xaml too) should be trivial for almost anyone to do. I'm quite happy to ship with automatic noesis xaml creation as well though if anyone else would be interested in that.