diff --git a/MRIcroGL.lps b/MRIcroGL.lps
index 04da161..b551661 100755
--- a/MRIcroGL.lps
+++ b/MRIcroGL.lps
@@ -18,8 +18,9 @@
         <ComponentName Value="GLForm1"/>
         <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
-        <TopLine Value="10"/>
-        <CursorPos X="19" Y="12"/>
+        <IsVisibleTab Value="True"/>
+        <TopLine Value="3386"/>
+        <CursorPos X="90" Y="3407"/>
         <UsageCount Value="204"/>
         <Loaded Value="True"/>
         <LoadedDesigner Value="True"/>
@@ -284,7 +285,6 @@
       </Unit33>
       <Unit34>
         <Filename Value="../Metal-Demos/common/retinahelper.pas"/>
-        <IsVisibleTab Value="True"/>
         <EditorIndex Value="2"/>
         <CursorPos X="13" Y="22"/>
         <UsageCount Value="98"/>
@@ -384,7 +384,7 @@
     <Build>
       <CleanOutputFileMask Value="*.ppu;*.ppl;*.o;*.or"/>
     </Build>
-    <JumpHistory Count="17" HistoryIndex="16">
+    <JumpHistory Count="23" HistoryIndex="22">
       <Position1>
         <Filename Value="mainunit.pas"/>
         <Caret Line="2232" Column="47" TopLine="2230"/>
@@ -453,6 +453,30 @@
         <Filename Value="glvolume2.pas"/>
         <Caret Line="2720" Column="44" TopLine="2700"/>
       </Position17>
+      <Position18>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="12" Column="19" TopLine="10"/>
+      </Position18>
+      <Position19>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="409" Column="18" TopLine="389"/>
+      </Position19>
+      <Position20>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="1313" Column="23" TopLine="1292"/>
+      </Position20>
+      <Position21>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="1340" Column="7" TopLine="1319"/>
+      </Position21>
+      <Position22>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="2113" Column="16" TopLine="2092"/>
+      </Position22>
+      <Position23>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="2123" Column="16" TopLine="2104"/>
+      </Position23>
     </JumpHistory>
     <RunParams>
       <FormatVersion Value="2"/>
diff --git a/MRIcroGL.res b/MRIcroGL.res
index 18ed76a..d9de282 100755
Binary files a/MRIcroGL.res and b/MRIcroGL.res differ
diff --git a/mainunit.lfm b/mainunit.lfm
index 4a37798..b3d5d1e 100755
--- a/mainunit.lfm
+++ b/mainunit.lfm
@@ -1,11 +1,11 @@
 object GLForm1: TGLForm1
   Left = 213
-  Height = 960
-  Top = 38
+  Height = 693
+  Top = 25
   Width = 916
   AllowDropFiles = True
   Caption = 'MRIcroGL'
-  ClientHeight = 960
+  ClientHeight = 693
   ClientWidth = 916
   Constraints.MinHeight = 20
   Constraints.MinWidth = 20
@@ -23,25 +23,25 @@ object GLForm1: TGLForm1
   LCLVersion = '2.3.0.0'
   object TopPanel: TPanel
     Left = 0
-    Height = 874
+    Height = 607
     Top = 0
     Width = 916
     Align = alClient
-    ClientHeight = 874
+    ClientHeight = 607
     ClientWidth = 916
     ParentFont = False
     TabOrder = 0
     object ToolPanel: TScrollBox
       Left = 1
-      Height = 872
+      Height = 605
       Top = 1
       Width = 268
       HorzScrollBar.Page = 1
       HorzScrollBar.Visible = False
-      VertScrollBar.Page = 872
+      VertScrollBar.Page = 605
       Align = alLeft
       BorderStyle = bsNone
-      ClientHeight = 872
+      ClientHeight = 605
       ClientWidth = 253
       ParentFont = False
       TabOrder = 0
@@ -1594,12 +1594,12 @@ object GLForm1: TGLForm1
     end
     object ScriptPanel: TPanel
       Left = 913
-      Height = 872
+      Height = 605
       Top = 1
       Width = 2
       Align = alRight
       BevelOuter = bvNone
-      ClientHeight = 872
+      ClientHeight = 605
       ClientWidth = 2
       Constraints.MinWidth = 2
       ParentFont = False
@@ -1607,12 +1607,12 @@ object GLForm1: TGLForm1
       OnDblClick = ScriptPanelDblClick
       object ScriptBox: TGroupBox
         Left = -8
-        Height = 872
+        Height = 605
         Top = 0
         Width = 10
         Align = alClient
         Caption = 'Scripting'
-        ClientHeight = 853
+        ClientHeight = 586
         ClientWidth = 0
         Constraints.MinWidth = 10
         ParentFont = False
@@ -1620,7 +1620,7 @@ object GLForm1: TGLForm1
         OnDblClick = ScriptPanelDblClick
         object ScriptMemo: TMemo
           Left = 0
-          Height = 647
+          Height = 380
           Top = 0
           Width = 0
           Align = alClient
@@ -1644,7 +1644,7 @@ object GLForm1: TGLForm1
         object ScriptOutputMemo: TMemo
           Left = 0
           Height = 200
-          Top = 653
+          Top = 386
           Width = 0
           Align = alBottom
           BorderStyle = bsNone
@@ -1661,7 +1661,7 @@ object GLForm1: TGLForm1
           Cursor = crVSplit
           Left = 0
           Height = 6
-          Top = 647
+          Top = 380
           Width = 0
           Align = alBottom
           ResizeAnchor = akBottom
@@ -1670,13 +1670,13 @@ object GLForm1: TGLForm1
     end
     object LeftSplitter: TSplitter
       Left = 269
-      Height = 872
+      Height = 605
       Top = 1
       Width = 6
     end
     object RightSplitter: TSplitter
       Left = 907
-      Height = 872
+      Height = 605
       Top = 1
       Width = 6
       Align = alRight
@@ -1684,7 +1684,7 @@ object GLForm1: TGLForm1
     end
     object CenterPanel: TPanel
       Left = 275
-      Height = 872
+      Height = 605
       Top = 1
       Width = 632
       Align = alClient
@@ -1697,7 +1697,7 @@ object GLForm1: TGLForm1
     Cursor = crVSplit
     Left = 0
     Height = 6
-    Top = 874
+    Top = 607
     Width = 916
     Align = alBottom
     MinSize = 4
@@ -1706,7 +1706,7 @@ object GLForm1: TGLForm1
   object BottomPanel: TPanel
     Left = 0
     Height = 80
-    Top = 880
+    Top = 613
     Width = 916
     Align = alBottom
     ClientHeight = 80
diff --git a/mainunit.pas b/mainunit.pas
index 1d31174..53403d6 100755
--- a/mainunit.pas
+++ b/mainunit.pas
@@ -3404,7 +3404,7 @@   TPythonBridgeMethod = record
 (name: 'shaderupdategradients'; callback: @PySHADERUPDATEGRADIENTS; help: ' shaderupdategradients() -> Recalculate volume properties.'),
 (name: 'sharpen'; callback: @PySHARPEN; help: ' sharpen() -> apply unsharp mask to background volume to enhance edges'),
 (name: 'smooth'; callback: @PySMOOTH2D; help: ' smooth2D(s) -> make 2D images blurry (linear interpolation, 1) or jagged (nearest neighbor, 0).'),
-(name: 'dog'; callback: @PyDoG; help: ' dog(layer) -> Creates new layer based on 2.5 vs 2.0mm FWHM difference-of-Gaussian edge map of selected layer.'),
+(name: 'dog'; callback: @PyDoG; help: ' dog(layer) -> Creates new layer based on 2.5 vs 4.0mm FWHM difference-of-Gaussian edge map of selected layer.'),
 (name: 'toolformvisible'; callback: @PyTOOLFORMVISIBLE; help: ' toolformvisible(visible) -> Show (1) or hide (0) the tool panel.'),
 (name: 'version'; callback: @PyVERSION; help: ' version() -> Return the version of MRIcroGL.'),
 (name: 'view'; callback: @PyVIEW; help: ' view(v) -> Display Axial (1), Coronal (2), Sagittal (4), Flipped Sagittal (8), MPR (16), Mosaic (32) or Rendering (64)'),