The newest update (1.2.7) seems to constantly generate lopsided fields, often covering fields with trees while leaving a big empty space field & tree free. (e.g. https://watabou.github.io/village-generator/?seed=313542736) is that deliberate?
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Lopsided fields are mostly fields which the generator tries to place in rings around the centre of a village. So yes, this is deliberate, although as I said in the post, I'm not sure this is such a great idea. If there will be enough negative feedback about them, they will be removed.
The only thing that has changed about trees is that the last chosen value of None/Some/Many is remembered now. The way of distributing them across the map hasn't been changed.