What do all the Ember Mug light colors actually mean?

The white vs green thing is rather bad user experience. Any two colors that aren’t pale would have been better than the two that is the same color.
 
There is also a slow red pulsing light that indicates that the product overheated. Did this once when I left the mug on the charging dock with coffee in the sun. Not mentioned in the original post.
 
Im shocked at how many state there are. For me it’s as simple as looking at the mug. If on, it’s working. If off, charge it.