I want to add InPadding to my LabelFrame i'm using AppJar GUI. I try this:
self.app.setLabelFrameInPadding(self.name("_content"), [20, 20])
But i get this error:

appJar:WARNING [Line 12->3063/configureWidget]: Error configuring _content: unknown option "-ipadx"

Any ideas how to fix it?
Because of the way containers are implemented in appJar, padding works slightly differently for labelFrames.
Try calling: app.setLabelFramePadding('name', [20,20])
Error configuring: unknown option "-ipadx"