diff --git a/data/gui/default/widget/text_box_default.cfg b/data/gui/default/widget/text_box_default.cfg
index 30e4a97460c..f152ea3c986 100644
--- a/data/gui/default/widget/text_box_default.cfg
+++ b/data/gui/default/widget/text_box_default.cfg
@@ -2,22 +2,80 @@
 ### Definition of a single line text box.
 ###
 
-[text_box_definition]
-	id = "default"
-	description = "Default text box"
+#define _GUI_DRAW_BORDER COLOUR
+	[rectangle]
+		x = 0
+		y = 0
+		w = "(width)"
+		h = "(height)"
 
+		border_thickness = 3
+		border_colour = "55, 55, 55, 192"
+
+	[ /rectangle]
+
+	[rectangle]
+		x = 1
+		y = 1
+		w = "(width - 2)"
+		h = "(height - 2)"
+
+		border_thickness = 1
+		border_colour = {COLOUR}
+
+	[/rectangle]
+#enddef
+
+#define _GUI_DRAW_TEXT SIZE COLOUR
+	[rectangle]
+		x = "(text_x_offset + selection_offset)"
+		y = "(text_y_offset)"
+		w = "(selection_width)"
+		h = "(text_font_height)"
+
+		border_thickness = 0
+		fill_colour = "21, 53, 80, 255"
+
+	[/rectangle]
+
+	[text]
+		x = "(text_x_offset)"
+		y = "(text_y_offset)"
+		w = "(text_width)"
+		h = "(text_height)"
+		font_size = {SIZE}
+		colour = {COLOUR}
+		text = "(text)"
+	[/text]
+#enddef
+
+#define _GUI_DRAW_CURSOR X_OFFSET
+	[line]
+		x1 = "(cursor_offset + " + {X_OFFSET} + ")"
+		y1 = "(text_y_offset)"
+		x2 = "(cursor_offset + " + {X_OFFSET} + ")"
+		y2 = "(text_y_offset + text_font_height)"
+		colour = "255, 255, 255, 255"
+		thickness = 1
+	[/line]
+#enddef
+
+#define _GUI_RESOLUTION RESOLUTION MIN_WIDTH DEFAULT_WIDTH HEIGHT X_OFFSET FONT_SIZE 
 	[resolution]
-		min_width = 40
-		min_height = 22
 
-		default_width = 250
-		default_height = 22
+		{RESOLUTION}
+
+		min_width = {MIN_WIDTH}
+		min_height = {HEIGHT}
+
+		default_width = {DEFAULT_WIDTH}
+		default_height = {HEIGHT}
 
 		max_width = 0
-		max_height = 22
+		max_height = {HEIGHT}
 
-		text_font_size = {FONT_SIZE_NORMAL__NORMAL}
-		text_x_offset = 5
+		text_font_size = {FONT_SIZE}
+		text_x_offset = {X_OFFSET}
 		text_y_offset =	"(if(text_font_height <= height, (height - text_font_height) / 2, 0))"
 
 		[state_enabled]
@@ -26,48 +84,11 @@
 
 			[draw]
 
-				[rectangle]
-					x = 0
-					y = 0
-					w = "(width)"
-					h = "(height)"
+				{_GUI_DRAW_BORDER ({GUI__FONT_COLOUR_ENABLED__TITLE}) }
 
-					border_thickness = 3
-					border_colour = "55, 55, 55, 192"
+				{_GUI_DRAW_TEXT ({FONT_SIZE}) ({FONT_COLOUR_ENABLED}) }
 
-				[/rectangle]
-
-				# selection box
-				[rectangle]
-					x = "(text_x_offset + selection_offset)"
-					y = "(text_y_offset)"
-					w = "(selection_width)"
-					h = "(text_font_height)"
-
-					border_thickness = 0
-					fill_colour = "21, 53, 80, 255"
-
-				[/rectangle]
-
-				[text]
-					x = "(text_x_offset)"
-					y = "(text_y_offset)"
-					w = "(text_width)"
-					h = "(text_height)"
-					font_size = {FONT_SIZE_NORMAL__NORMAL}
-					colour = {FONT_COLOUR_ENABLED}
-					text = "(text)"
-				[/text]
-
-				# cursor
-				[line]
-					x1 = "(cursor_offset) + 5"
-					y1 = "(text_y_offset)"
-					x2 = "(cursor_offset) + 5"
-					y2 = "(text_y_offset + text_font_height)"
-					colour = "255, 255, 255, 255"
-					thickness = 1
-				[/line]
+				{_GUI_DRAW_CURSOR ({X_OFFSET}) }
 
 			[/draw]
 	
@@ -79,28 +100,9 @@
 
 			[draw]
 
-				[rectangle]
-					x = 0
-					y = 0
-					w = "(width)"
-					h = "(height)"
+  				{_GUI_DRAW_BORDER ({GUI__FONT_COLOUR_DISABLED__TITLE}) }
 
-					border_thickness = 3
-					border_colour = "55, 55, 55, 192"
-
-				[/rectangle]
-
-				[text]
-					x = "5"
-					y = {TEXT_V_CENTRE}
-					w = "(text_width)"
-					h = "(text_height)"
-					font_size = {FONT_SIZE_NORMAL__NORMAL}
-					colour = {FONT_COLOUR_DISABLED}
-					text = "(text)"
-				[/text]
-
-				# no cursor when disabled.
+  				{_GUI_DRAW_TEXT ({FONT_SIZE}) ({FONT_COLOUR_DISABLED}) }
 
 			[/draw]
 	
@@ -112,41 +114,31 @@
 
 			[draw]
 
-				[rectangle]
-					x = 0
-					y = 0
-					w = "(width)"
-					h = "(height)"
+				{_GUI_DRAW_BORDER ({GUI__FONT_COLOUR_ENABLED__TITLE}) }
 
-					border_thickness = 3
-					border_colour = "55, 55, 55, 192"
+				{_GUI_DRAW_TEXT ({FONT_SIZE}) ({FONT_COLOUR_ENABLED}) }
 
-				[/rectangle]
-
-				[text]
-					x = "5"
-					y = {TEXT_V_CENTRE}
-					w = "(text_width)"
-					h = "(text_height)"
-					font_size = {FONT_SIZE_NORMAL__NORMAL}
-					colour = {FONT_COLOUR_ENABLED}
-					text = "(text)"
-				[/text]
-
-				# cursor
-				[line]
-					x1 = "(cursor_offset) + 5"
-					y1 = 2
-					x2 = "(cursor_offset) + 5"
-					y2 = "(height - 4)"
-					colour = "0, 0, 0, 255"
-					thickness = 1
-				[/line]
+				{_GUI_DRAW_CURSOR ({X_OFFSET}) }
 
 			[/draw]
-	
+
 		[/state_focussed]
 
 	[/resolution]
 
+#enddef
+
+[text_box_definition]
+	id = "default"
+	description = "Default text box"
+
+	# Tiny gui sizes haven't been tested yet so might need some tuning.
+	{_GUI_RESOLUTION ({GUI_TINY__RESOLUTION}) 20 125 15  5 ({GUI_TINY__FONT_SIZE__DEFAULT})   }
+	{_GUI_RESOLUTION ()                       40 250 25  5 ({GUI_NORMAL__FONT_SIZE__DEFAULT}) }
+
 [/text_box_definition]
+
+#undef _GUI_RESOLUTION
+#undef _GUI_DRAW_CURSOR
+#undef _GUI_DRAW_TEXT
+#undef _GUI_DRAW_BORDER COLOUR