Add a new transparent scrolllabel for wml_message.

data/gui/default/macros/horizontal_scrollbar.cfg

@@ -43,3 +43,46 @@ horizontal_grow = "true"
 [/grid]
 #enddef
 
+#define GUI__HORIZONTAL_SCROLLBAR_GRID_TRANSPARENT
+horizontal_grow = "true"
+[grid]
+	id = "_horizontal_scrollbar_grid"
+
+	[row]
+
+		[column]
+
+			# note we want a special button definition for this later.
+			[button]
+				id = "_half_page_up"
+				definition = "left_arrow_transparent"
+			[/button]
+
+		[/column]
+
+		[column]
+			grow_factor = 1
+			horizontal_grow = "true"
+
+			[horizontal_scrollbar]
+				id = "_horizontal_scrollbar"
+				definition = "transparent"
+			[/horizontal_scrollbar]
+
+		[/column]
+
+		[column]
+
+			# note we want a special button definition for this later.
+			[button]
+				id = "_half_page_down"
+				definition = "right_arrow_transparent"
+			[/button]
+
+		[/column]
+
+	[/row]
+
+[/grid]
+#enddef
+

data/gui/default/macros/vertical_scrollbar.cfg

@@ -50,3 +50,55 @@ vertical_grow = "true"
 
 [/grid]
 #enddef
+
+#define GUI__VERTICAL_SCROLLBAR_GRID_TRANSPARENT
+vertical_grow = "true"
+[grid]
+	id = "_vertical_scrollbar_grid"
+
+	[row]
+
+		[column]
+
+			# note we want a special button definition for this later.
+			[button]
+				id = "_half_page_up"
+				definition = "up_arrow_transparent"
+			[/button]
+
+		[/column]
+
+	[/row]
+
+	[row]
+
+			grow_factor = 1
+		[column]
+			vertical_grow = "true"
+
+			[vertical_scrollbar]
+				id = "_vertical_scrollbar"
+				definition = "transparent"
+			[/vertical_scrollbar]
+
+		[/column]
+
+	[/row]
+
+	[row]
+
+		[column]
+
+			# note we want a special button definition for this later.
+			[button]
+				id = "_half_page_down"
+				definition = "down_arrow_transparent"
+			[/button]
+
+		[/column]
+
+	[/row]
+
+[/grid]
+#enddef
+

data/gui/default/widget/scroll_label_wml_message.cfg

@@ -0,0 +1,123 @@
+#textdomain wesnoth-lib
+###
+### Definition of a scroll label for the wml_message.
+### 
+
+#define _GUI_RESOLUTION RESOLUTION FONT_SIZE FONT_STYLE FONT_COLOUR_ENABLED FONT_COLOUR_DISABLED
+	[resolution]
+
+		{RESOLUTION}
+
+		min_width = 0
+		min_height = 0
+
+		default_width = 0
+		default_height = 0
+
+		max_width = 0
+		max_height = 0
+
+		text_font_size = {FONT_SIZE}
+		text_font_style = {FONT_STYLE}
+
+		[state_enabled]
+
+			[draw]
+			[/draw]
+	
+		[/state_enabled]
+
+		[state_disabled]
+
+			[draw]
+			[/draw]
+
+		[/state_disabled]
+
+		[grid]
+
+			[row]
+				grow_factor = 1
+
+				[column]
+					grow_factor = 1
+								horizontal_grow = "true" # needed ?
+								vertical_grow = "true" # needed ?
+
+					[grid]
+						id = "_content_grid"
+
+						[row]
+
+							[column]
+								horizontal_grow = "true"
+								vertical_grow = "true"
+
+								[label]
+									id = "_label"
+									definition = "default"
+								[/label]
+
+							[/column]
+
+						[/row]
+
+					[/grid]
+
+				[/column]
+
+				[column]
+
+					{GUI__VERTICAL_SCROLLBAR_GRID_TRANSPARENT}
+
+				[/column]
+
+			[/row]
+
+			[row]
+
+				[column]
+
+					{GUI__HORIZONTAL_SCROLLBAR_GRID_TRANSPARENT}
+
+				[/column]
+
+				[column]
+
+					[spacer]
+					[/spacer]
+
+				[/column]
+
+			[/row]
+
+		[/grid]
+
+	[/resolution]
+#enddef
+
+[scroll_label_definition]
+	id = "wml_message"
+	description = "The scroll label for the wml_message."
+
+	{_GUI_RESOLUTION 
+		({GUI_TINY__RESOLUTION})
+		({GUI_TINY__FONT_SIZE__DEFAULT})
+		()
+		({GUI__FONT_COLOUR_ENABLED__DEFAULT})
+		({GUI__FONT_COLOUR_DISABLED__DEFAULT})
+	}
+
+	
+	{_GUI_RESOLUTION 
+		({GUI_NORMAL__RESOLUTION}) 
+		({GUI_NORMAL__FONT_SIZE__DEFAULT}) 
+		() 
+		({GUI__FONT_COLOUR_ENABLED__DEFAULT}) 
+		({GUI__FONT_COLOUR_DISABLED__DEFAULT}) 
+	}
+
+[/scroll_label_definition]
+
+#undef _GUI_RESOLUTION 
+

data/gui/default/window/wml_message.cfg

@@ -371,7 +371,7 @@
 
 															[scroll_label] # NOTE maybe change the code to use message instead of label as id
 																id = "label"
-																definition = "default"
+																definition = "wml_message"
 															[/scroll_label]
 
 														[/column]