Hi Josh,
I just released the new version of this component, removing the Silk UI reference and updating the demo module.
The resizable columns component actually doesn't have any references to Silk UI at this time, but as I was updating the demo module to use the new OutSystems UI templates, I noticed some odd behavior with the component and the new templates. I will have to take a little more time to analyze the issues I saw and release a new version once they are corrected.
Thanks,
Justin