NO. they're all mine
.
Umm well, okay, there is.
If you don't collect foods (who does), then you can add the following records to the harvestable.xml file
<item name="Corpse" type="food"/>
<item name="Backpack" type="food"/>
<item name="[\w \-]+ Chest$" type="food"/>
and then tick the food options.
I suggest you remove the other food items from the xml (or comment them out) so you don't end up spending all the time picking up stawberries.
Personally I'd like another harvestable type for treasure items, but its not really needed as collecting food takes far longer than farming it and you can just hijack the food for the purpose.
If you don't like that idea you can change the type"food" to wood/ore/artifact if you like and it will just add it in with the existing harvest types you already collect (although you'll need a valid tool then). Just don't add a harvestable to more than one type, or it probably wont be collected.
Depending on how your path is configured, and how many other people are running around the area, you should be able to clear 2 -3 gold an hour (plus other sundries) from backpacks/chest/corpses in Dunland. There are a few good areas where the density of the treasure items make for good pickings.