diff --git a/API.md b/API.md
index 51a8cb4..de20c7d 100644
--- a/API.md
+++ b/API.md
@@ -55,9 +55,9 @@ Sets the current tab by name. `player` is an `ObjectRef` to the user.
 
 Overrides a tab by name. `def` is the tab definition like seen in `i3.set_tab`.
 
-#### `i3.get_tabs()`
+#### `i3.tabs`
 
-Returns the list of registered tabs.
+A list of registered tabs.
 
 ---
 
@@ -81,28 +81,28 @@ i3.register_craft_type("digging", {
 #### Registering a custom crafting recipe (examples)
 
 ```Lua
-i3.register_craft({
+i3.register_craft {
 	type   = "digging",
 	result = "default:cobble 2",
 	items  = {"default:stone"},
-})
+}
 ```
 
 ```Lua
-i3.register_craft({
+i3.register_craft {
 	result = "default:cobble 16",
 	items = {
 		"default:stone, default:stone, default:stone",
 		"default:stone,              , default:stone",
 		"default:stone, default:stone, default:stone",
 	}
-})
+}
 ```
 
 Recipes can be registered in a Minecraft-like way:
 
 ```Lua
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -114,13 +114,13 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 ```
 
 Multiples recipes can also be registered:
 
 ```Lua
-i3.register_craft({
+i3.register_craft {
 	{
 		result = "default:mese",
 		items = {
@@ -138,15 +138,15 @@ i3.register_craft({
 			"default:mese_crystal, default:mese_crystal",
 		}
 	},
-})
+}
 ```
 
 Recipes can be registered from a given URL containing a JSON file (HTTP support is required¹):
 
 ```Lua
-i3.register_craft({
+i3.register_craft {
 	url = "https://raw.githubusercontent.com/minetest-mods/i3/main/tests/test_online_recipe.json"
-})
+}
 ```
 
 ---
@@ -182,10 +182,6 @@ end)
 
 Removes all recipe filters and adds a new one.
 
-#### `i3.remove_recipe_filter(name)`
-
-Removes the recipe filter with the given `name`.
-
 #### `i3.recipe_filters`
 
 A map of recipe filters, indexed by name.
@@ -229,10 +225,6 @@ i3.add_search_filter("types", function(item, drawtypes)
 end)
 ```
 
-#### `i3.remove_search_filter(name)`
-
-Removes the search filter with the given `name`.
-
 #### `i3.search_filters`
 
 A map of search filters, indexed by name.
diff --git a/etc/common.lua b/etc/common.lua
index edbfcde..ec4a69e 100644
--- a/etc/common.lua
+++ b/etc/common.lua
@@ -1,4 +1,3 @@
-local modpath = core.get_modpath "i3"
 local item_compression = core.settings:get_bool("i3_item_compression", true)
 local reg_items, translate = core.registered_items, core.get_translated_string
 
diff --git a/etc/progressive.lua b/etc/progressive.lua
index 8bcdec8..6cbb5e5 100644
--- a/etc/progressive.lua
+++ b/etc/progressive.lua
@@ -3,6 +3,7 @@ local HUD_TIMER_MAX = 1.5
 
 local set_fs = i3.set_fs
 local modpath = core.get_modpath "i3"
+
 local search, table_merge, is_group, extract_groups, item_has_groups, apply_recipe_filters =
 	unpack(dofile(modpath .. "/etc/common.lua").progressive)
 
diff --git a/init.lua b/init.lua
index ce0f6d9..dc7f9c3 100644
--- a/init.lua
+++ b/init.lua
@@ -184,8 +184,7 @@ local function get_formspec_version(info)
 end
 
 local function outdated(name)
-	local fs = fmt("size[6.3,1.3]image[0,0;1,1;%s]label[1,0;%s]button_exit[2.6,0.8;1,1;;OK]",
-		"i3_book.png",
+	local fs = fmt("size[6.3,1.3]image[0,0;1,1;i3_book.png]label[1,0;%s]button_exit[2.6,0.8;1,1;;OK]",
 		"Your Minetest client is outdated.\nGet the latest version on minetest.net to play the game.")
 
 	core.show_formspec(name, "i3_outdated", fs)
@@ -338,10 +337,6 @@ function i3.set_recipe_filter(name, f)
 	i3.recipe_filters = {[name] = f}
 end
 
-function i3.remove_recipe_filter(name)
-	i3.recipe_filters[name] = nil
-end
-
 function i3.add_search_filter(name, f)
 	if not true_str(name) then
 		return err "i3.add_search_filter: name missing"