diff --git a/worldeditadditions_core/core/entities/pos_marker.lua b/worldeditadditions_core/core/entities/pos_marker.lua
index f03355e..eafec2f 100644
--- a/worldeditadditions_core/core/entities/pos_marker.lua
+++ b/worldeditadditions_core/core/entities/pos_marker.lua
@@ -66,20 +66,41 @@ local function delete(entity)
 	})
 end
 
+local number_colours = {
+	"#FF0000",
+	"#FF8800",
+	"#FFFF00",
+	"#88FF00",
+	"#00FF00",
+	"#00FF88",
+	"#00FFFF",
+	"#0088FF",
+	"#0000FF",
+	"#8800ff",
+	"#FF00ff",
+	"#FF0088"
+}
+
 local function set_number(entity, display_number)
 	if type(display_number) ~= "number" then return false, "Error: The 'display_number' property must be of type number, but received value of unexpected type '"..type(display_number).."'." end
 	
-	local texture_name = "worldeditadditions_bg.png"
+	local texture_name = ""
 	
 	if display_number < 100 then
 		local number_right = display_number % 10
 		local number_left = (display_number - number_right) / 10
-		texture_name = texture_name.."^worldeditadditions_l"..number_left..".png"
+		texture_name = texture_name.."worldeditadditions_l"..number_left..".png"
 		texture_name = texture_name.."^worldeditadditions_r"..number_right..".png"
 		print("DEBUG:set_number number_left", number_left, "number_right", number_right)
+		
+		local colour_id = (display_number % 12) + 1 -- Lua starts from 1, not 0 :-/
+		texture_name = "("..texture_name..")^[colorize:"..number_colours[colour_id]..":255"
+	end
+	if #texture_name > 0 then
+		texture_name = "worldeditadditions_bg.png^("..texture_name..")"
+	else
+		texture_name = "worldeditadditions_bg.png"
 	end
-	
-	texture_name = "("..texture_name..")^[opacity:220"
 	
 	print("DEBUG:set_number texture_name", texture_name)