Extjs Custom TreeGrid Row CSS
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Is there a way to apply Alternative row css on the child level of a tree grid? 

Currently the stripeRows config on the treePanel viewConfig just makes everything grey and white, but it is difficult to distinguish the child rows from the parent rows. 

Ideally I'd like to make the parent objects alternate colors one way and the child rows alternate colors another way.

I was thinking of writing a function using the "getRowClass" method to manually update the row class. I was wondering if there was a cleaner way.