Hi,
I have made the changes as described for - Einstein Analytics and Discovery Insights Specialist, Challenge 3
but getting Error: Restforce::ResponseError. Message: 550: Cannot convert dynamic parameters of a reference line in chart widgets
While checking the challenge

Hi,

I am not able to change my trailhead email  address. Because of that I am not able to link my Trailhead account with Web accessor.
Any help on updating trailhead email address would be highly appreciated.

Thanks and Regards,
Wahid Buhari

https://www.lightningdesignsystem.com/components/forms/#flavor-checkbox-toggle
how to use this on lightning component