The API reference of the kendo.mobile.ui.Collapsible is incomplete. For instance: I'm missing the configuration property "collapseIcon".
The "iconPosition" configuration property has no effect. The examples do not show any icons (Chrome):
Thank you for your feedback regarding the kendo.mobile.ui.Collapsible API. All the demos for the component will be revised and the changes will be published very soon.
I've updated your Telerik points as a sign of gratitude.
Let me know if you have additional questions regarding the current thread.