Having all containers be customizable so that they can: 1) either allow ALL items, or 2) allow a customizable list of 1-10 things exclusively – would be great.
In the absence of that, however, the new resource containers need to be widened slightly to include more things that make sense thematically.
The mining container should also allow any by-product you get from mining: salt, crystal, obsidian, ash, blood crystals, brimstone, coal, black ice, all ores, AND all ingots smelted from those ores. Right now you DO get a lot of these, but not all of them. Stone consolidants and bricks should be included perhaps too, as these relate to the finished products of stone-cutting too.
The wood container should be the same, allowing all by-products (like resin) and finished wood products too, like shaped wood and insulated wood.
The baskets should clearly allow vines, lotus of all types, aloe, mushrooms, seeds of all kinds, fresh and dried berries, every plant that can be used for dye-making, and also the finished products related to plant fibres, like twine.
The skinning/leather container should take fur (which is very odd that it doesn’t), and also all the actual by-products of tanning (like tar), and the finished products (leather, thick leather), bones, chitin, dragon bones and horns, and maybe even gossamer and silk as these relate conceptually in some ways as well – because all these items are about converting animal products into clothing or armour or weapons eventually.