You can try more examples here:

http://www.stagexl.org/samples/

And you can look at some source code examples here:

https://github.com/bp74/StageXL_Samples

And StageXL also supports runtimes for Spine, Dragenbones, Flump, ...:

https://github.com/bp74/StageXL_Spine

https://github.com/bp74/StageXL_DragonBones

https://github.com/bp74/StageXL_Flump

https://github.com/bp74/StageXL_BitmapFont