It doesn't sadly. I had tried to implement that, but couldn't find a provable way to prevent 50/50. It's especially trickier as I can't use an algo with just rows and columns, it has to work on a graph.
And it would need to be fast enough as to not slow the grid generation (which already takes a few seconds on the maximum size).
So I'd love to add this ultimately, but not entirely sure I'll have the resources.