groups: add support for customnode groups

libs/filter.lua

@@ -57,7 +57,8 @@ filter.register_filter({
 						k:sub(1, 7) == "excolor" or
 						k:sub(1, 5) == "color" or
 						k:sub(1, 8) == "unicolor" or
-						k:sub(1, 4) == "food" then
+						k:sub(1, 4) == "food" or
+						k:sub(1, 10) == "customnode" then
 					mk = string.gsub(k, "_", ":")
 				else
 					mk = k

txt/classify_description_de.lua

@@ -71,6 +71,9 @@ return {
 	["group:micro"] = {label = "Mikro"},
 	["group:panel"] = {label = "Paneel"},
 	["group:slope"] = {label = "Neigung"},
+	["group:customnode"] = {label = "Dekorativer Block"},
+	["group:customnode:default"] = {label = false},
+
 
 	["type:tool"] = { label = "Werkzeuge" },
 	["type:node"] = { label = "Blöcke" },

txt/classify_description_en.lua

@@ -71,6 +71,8 @@ return {
 	["group:micro"] = {label = "Micro"},
 	["group:panel"] = {label = "Panel"},
 	["group:slope"] = {label = "Slope"},
+	["group:customnode"] = {label = "Decorative node"},
+	["group:customnode:default"] = {label = false},
 
 	["type:tool"] = { label = "Tools" },
 	["type:node"] = { label = "Nodes" },