Control 3D lighting settings

*Is there any way of controlling the 3D lighting effects?*
I've been looking into source and found the ``DEFAULT_LIGHT_SETTINGS`` var but editing those values don't seem to have any effect on the lighting of e.g. hexbin columns.

*Additional question:*
if ``DEFAULT_LIGHT_SETTINGS`` should change the lighting effects, how would I edit the ``DEFAULT_LIGHT_SETTINGS`` from my App.js.
Let's say if I would like to add a gui to control the individual values.

Thanks!