hopper/settingtypes.txt

#  Dimensions of the textures used, in pixels.
hopper_texture_size (Hopper texture size) enum 16 16,32

#  When true, the hopper mod uses a single craftable item that auto-selects
#  a top hopper or side hopper depending on the context the player places it in.
#  When false, top hoppers and side hoppers are explicitly craftable as separate
#  items.
hopper_single_craftable_item (Single craftable item) bool true

#  This enables a toggle button in the hopper formspecs that allows a hopper
#  to be set to "eject" items out into the world if there's no suitable node
#  in their target location to receive them. By default hoppers do not eject
#  items like this, the player must set this on a per-hopper basis.
hopper_eject_button (Eject items button) bool true

#  The Minetest log level to use for inventory take/put actions
hopper_inventory_log_level (Inventory log level) enum action none,action,info,verbose