diff --git a/energy_storage/inlet.lua b/energy_storage/inlet.lua
index ba82908..9511510 100644
--- a/energy_storage/inlet.lua
+++ b/energy_storage/inlet.lua
@@ -73,21 +73,46 @@ local function chat(owner, text)
 	return text
 end
 
-local function get_radius(pos, in_dir)
+local function get_diameter(pos, in_dir)
 	local dir = tubelib2.Dir6dToVector[in_dir]
-	local pos2 = vector.add(pos, vector.multiply(dir, 8))
-	local poses = minetest.find_nodes_in_area(pos, pos2, {"techage:ta4_pipe_inlet"})
-	if #poses == 2 then
-		local radius = vector.distance(poses[1], poses[2]) / 2
-		if radius == 2 or radius == 3 or radius == 4 then
-			return radius
-		end
+	local pos2, node
+	
+	pos2 = vector.add(pos, vector.multiply(dir, 4))
+	node = minetest.get_node(pos2)
+	if node.name == "techage:ta3_pipe_wall_entry" then
+		return
+	end
+	if node.name == "techage:ta4_pipe_inlet" then
+		return 5
+	end
+	
+	pos2 = vector.add(pos, vector.multiply(dir, 6))
+	node = minetest.get_node(pos2)
+	if node.name == "techage:ta3_pipe_wall_entry" then
+		return
+	end
+	if node.name == "techage:ta4_pipe_inlet" then
+		return 7
+	end
+	
+	pos2 = vector.add(pos, vector.multiply(dir, 8))
+	node = minetest.get_node(pos2)
+	if node.name == "techage:ta3_pipe_wall_entry" then
+		return
+	end
+	if node.name == "techage:ta4_pipe_inlet" then
+		return 9
+	end
+
+	pos2 = vector.add(pos, vector.multiply(dir, 10))
+	local poses = minetest.find_nodes_in_area(pos, pos2, {"techage:ta4_pipe_inlet"})
+	if #poses > 1 then
+		return vector.distance(pos, poses[2]) + 1
 	end
-	return 1
 end
 
 local function check_volume(pos, in_dir, owner)
-	local radius = get_radius(pos, in_dir)
+	local radius = (get_diameter(pos, in_dir) - 1) / 2
 	if radius then
 		local dir = tubelib2.Dir6dToVector[in_dir]
 		local cpos = vector.add(pos, vector.multiply(dir, radius))
@@ -113,7 +138,7 @@ end
 
 -- provide position behind the obsidian_glass
 local function check_window(pos, in_dir)
-	local radius = get_radius(pos, in_dir)
+	local radius = (get_diameter(pos, in_dir) - 1) / 2
 	if radius then
 		local dir = tubelib2.Dir6dToVector[in_dir]
 		local cpos = vector.add(pos, vector.multiply(dir, radius))
@@ -134,7 +159,7 @@ end
 techage.register_node({"techage:ta4_pipe_inlet"}, {
 	on_transfer = function(pos, in_dir, topic, payload)
 		if topic == "diameter" then
-			return get_radius(pos, in_dir) * 2 - 1
+			return get_diameter(pos, in_dir)
 		elseif topic == "integrity" then
 			return check_volume(pos, in_dir, payload)
 		elseif topic == "volume" then
diff --git a/lua_controller/controller.lua b/lua_controller/controller.lua
index 92d3c4d..70eb1dc 100644
--- a/lua_controller/controller.lua
+++ b/lua_controller/controller.lua
@@ -180,9 +180,10 @@ local function formspec1(meta)
 	default.gui_bg..
 	default.gui_bg_img..
 	default.gui_slots..
-	"style_type[textarea;font=mono]"..
+	"style_type[textarea;font=mono;textcolor=#FFFFFF;border=false]"..
 	"tabheader[0,0;tab;init,func,loop,outp,notes,help;1;;true]"..
 	"textarea[0.3,0.2;10,8.3;init;function init();"..init.."]"..
+	"background[0.1,0.3;9.8,7.0;techage_form_mask.png]"..
 	"label[0,7.3;end]"..
 	"button_exit[4.4,7.5;1.8,1;cancel;Cancel]"..
 	"button[6.3,7.5;1.8,1;save;Save]"..
@@ -198,9 +199,10 @@ local function formspec2(meta)
 	default.gui_bg..
 	default.gui_bg_img..
 	default.gui_slots..
-	"style_type[textarea;font=mono]"..
+	"style_type[textarea;font=mono;textcolor=#FFFFFF;border=false]"..
 	"tabheader[0,0;tab;init,func,loop,outp,notes,help;2;;true]"..
 	"textarea[0.3,0.2;10,8.3;func;functions:;"..func.."]"..
+	"background[0.1,0.3;9.8,7.0;techage_form_mask.png]"..
 	"button_exit[4.4,7.5;1.8,1;cancel;Cancel]"..
 	"button[6.3,7.5;1.8,1;save;Save]"..
 	"button[8.2,7.5;1.8,1;"..cmnd.."]"
@@ -215,9 +217,10 @@ local function formspec3(meta)
 	default.gui_bg..
 	default.gui_bg_img..
 	default.gui_slots..
-	"style_type[textarea;font=mono]"..
+	"style_type[textarea;font=mono;textcolor=#FFFFFF;border=false]"..
 	"tabheader[0,0;tab;init,func,loop,outp,notes,help;3;;true]"..
 	"textarea[0.3,0.2;10,8.3;loop;function loop(ticks, elapsed);"..loop.."]"..
+	"background[0.1,0.3;9.8,7.0;techage_form_mask.png]"..
 	"label[0,7.3;end]"..
 	"button_exit[4.4,7.5;1.8,1;cancel;Cancel]"..
 	"button[6.3,7.5;1.8,1;save;Save]"..
@@ -248,9 +251,10 @@ local function formspec5(meta)
 	default.gui_bg..
 	default.gui_bg_img..
 	default.gui_slots..
-	"style_type[textarea;font=mono]"..
+	"style_type[textarea;font=mono;textcolor=#FFFFFF;border=false]"..
 	"tabheader[0,0;tab;init,func,loop,outp,notes,help;5;;true]"..
 	"textarea[0.3,0.2;10,8.3;notes;Notepad:;"..notes.."]"..
+	"background[0.1,0.3;9.8,7.0;techage_form_mask.png]"..
 	"button_exit[6.3,7.5;1.8,1;cancel;Cancel]"..
 	"button[8.2,7.5;1.8,1;save;Save]"
 end
@@ -261,7 +265,7 @@ local function formspec6(items, pos, text)
 	default.gui_bg..
 	default.gui_bg_img..
 	default.gui_slots..
-	"style_type[textarea;font=mono]"..
+	"style_type[textarea;font=mono;textcolor=#FFFFFF]"..
 	"tabheader[0,0;tab;init,func,loop,outp,notes,help;6;;true]"..
 	"label[0,-0.2;Functions:]"..
 	"dropdown[0.3,0.2;10,8.3;functions;"..items..";"..pos.."]"..