[i]This is my first mod. I made it out of desperation. Please be nice.[/i]
In Rimworld: Odyssey, shallow water can freeze over, stopping your starving colonists from fishing at fishing zones. Inexplicably, their pathetic colonist brains are too puny to entertain the idea of standing at the edge of the frozen shallow water and fishing in deep water. This mod allows you to zone deep water as fishing zones, allowing your colonists to fish even in the coldest of temperatures. For obvious reasons, your colonists will not be able to fish at a fishing zone if it is surrounded by deep water, so make sure to zone next to walkable terrain. I have not tested for compatibility, but as long as the mod doesn't mess specifically with zoning fishing zones it should be fine.
[b]Known issue[/b]: The "expand zone" button when selecting a fishing zone does not allow you to expand a fishing zone into deep water. You can still expand a fishing zone by using the regular zone tools.