v0.6.6.0v0.6.6.0

* (Add) Pixel Editor: Eraser - Right click over a white pixel to remove it whole linked area (Fill with black) (#7)
* (Add) Pixel Editor: Parallel layer image save when apply modifications
* (Add) GCode: Save to clipboard
* (Change) Issues Repair: Default noise removal iterations to 0
* (Fix) Edit: Remove decimal plates for integer properties
* (Fix) cws: Exposure time was in seconds, changed to ms (#17)
* (Fix) cws: Calculate blanking time (#17)
* (Fix) cws: Edit LiftHeight and Exposure Time was enforcing integer number
* (Fix) cws: GCode extra space between slices
* (Fix) cws and zcodex: Precision errors on retract height

18 files changed, 392 insertions, 87 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 57f6d62..1fc505a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 11/08/2020 - v0.6.6.0
+
+* (Add) Pixel Editor: Eraser - Right click over a white pixel to remove it whole linked area (Fill with black) (#7)
+* (Add) Pixel Editor: Parallel layer image save when apply modifications 
+* (Add) GCode: Save to clipboard
+* (Change) Issues Repair: Default noise removal iterations to 0
+* (Fix) Edit: Remove decimal plates for integer properties
+* (Fix) cws: Exposure time was in seconds, changed to ms (#17)
+* (Fix) cws: Calculate blanking time (#17)
+* (Fix) cws: Edit LiftHeight and Exposure Time was enforcing integer number
+* (Fix) cws: GCode extra space between slices
+* (Fix) cws and zcodex: Precision errors on retract height
+
 ## 08/08/2020 - v0.6.5.0
 
 * (Add) Mutators: Custom kernels, auto kernels and anchor where applicable
@@ -16,7 +29,7 @@
 * (Add) Pixel Editor - Drawing: Line type and defaults to AntiAliasing
 * (Add) Pixel Editor - Drawing: Line thickness to allow hollow shapes
 * (Add) Pixel Editor - Drawing: Layer depth, to add pixels at multiple layers at once
-* (Add) Pixel Editor: Text writing
+* (Add) Pixel Editor: Text writing (#7)
 
 ## 05/08/2020 - v0.6.4.2
 
diff --git a/UVtools.Core/Extensions/EmguExtensions.cs b/UVtools.Core/Extensions/EmguExtensions.cs
index 967f714..16db414 100644
--- a/UVtools.Core/Extensions/EmguExtensions.cs
+++ b/UVtools.Core/Extensions/EmguExtensions.cs
@@ -183,6 +183,7 @@ namespace UVtools.Core.Extensions
         }
 
         public static byte GetByte(this Mat mat, int x, int y) => GetByte(mat, mat.GetPixelPos(x, y));
+        public static byte GetByte(this Mat mat, Point pos) => GetByte(mat, mat.GetPixelPos(pos.X, pos.Y));
 
 
         public static void SetByte(this Mat mat, int pixel, byte value) => SetByte(mat, pixel, new[] {value});
diff --git a/UVtools.Core/FileFormats/CWSFile.cs b/UVtools.Core/FileFormats/CWSFile.cs
index 26aee23..fa4aaf0 100644
--- a/UVtools.Core/FileFormats/CWSFile.cs
+++ b/UVtools.Core/FileFormats/CWSFile.cs
@@ -56,7 +56,7 @@ namespace UVtools.Core.FileFormats
             [DisplayName("Outline Width Outset")] public ushort OutlineWidthOutset { get; set; } = 0;
             [DisplayName("Bottom Layers Time")] public uint BottomLayersTime { get; set; } = 35000;
             [DisplayName("Number of Bottom Layers")] public ushort NumberBottomLayers { get; set; } = 3;
-            [DisplayName("Blanking Layer Time")] public uint BlankingLayerTime { get; set; }
+            [DisplayName("Blanking Layer Time")] public uint BlankingLayerTime { get; set; } = 1000;
             [DisplayName("BuildDirection")] public string BuildDirection { get; set; } = "Bottom_Up";
             [DisplayName("Lift Distance")] public float LiftDistance { get; set; } = 4;
             [DisplayName("Slide/Tilt Value")] public byte TiltValue { get; set; }
@@ -416,7 +416,7 @@ G1 Z-3.9 F120
             if (ReferenceEquals(modifier, PrintParameterModifier.InitialExposureSeconds))
             {
                 SliceSettings.HeadLayersExpoMs = 
-                OutputSettings.BottomLayersTime = value.Convert<uint>()*1000;
+                OutputSettings.BottomLayersTime = (uint) (value.Convert<float>()*1000);
                 UpdateLayers();
                 UpdateGCode();
                 return true;
@@ -424,7 +424,7 @@ G1 Z-3.9 F120
             if (ReferenceEquals(modifier, PrintParameterModifier.ExposureSeconds))
             {
                 SliceSettings.LayersExpoMs =
-                OutputSettings.LayerTime = value.Convert<uint>() * 1000;
+                OutputSettings.LayerTime = (uint) (value.Convert<float>() * 1000);
                 UpdateLayers();
                 UpdateGCode();
                 return true;
@@ -433,7 +433,7 @@ G1 Z-3.9 F120
             if (ReferenceEquals(modifier, PrintParameterModifier.LiftHeight))
             {
                 SliceSettings.LiftDistance =
-                OutputSettings.LiftDistance = value.Convert<byte>();
+                OutputSettings.LiftDistance = value.Convert<float>();
                 UpdateGCode();
                 return true;
             }
@@ -613,7 +613,7 @@ G1 Z-3.9 F120
                 Layer layer = this[layerIndex];
                 GCode.AppendLine($"{GCodeKeywordSlice} {layerIndex}");
                 GCode.AppendLine($"M106 S{GetInitialLayerValueOrNormal(layerIndex, OutputSettings.BottomLightPWM, OutputSettings.LightPWM)}");
-                GCode.AppendLine($"{GCodeKeywordDelay} {layer.ExposureTime}");
+                GCode.AppendLine($"{GCodeKeywordDelay} {layer.ExposureTime * 1000}");
                 GCode.AppendLine("M106 S0");
                 GCode.AppendLine(GCodeKeywordSliceBlank);
 
@@ -622,15 +622,26 @@ G1 Z-3.9 F120
                     if (LiftHeight > 0)
                     {
                         GCode.AppendLine($"G1 Z{LiftHeight} F{LiftSpeed}");
-                        GCode.AppendLine($"G1 Z-{LiftHeight - layer.PositionZ + lastZPosition} F{RetractSpeed}");
+                        GCode.AppendLine($"G1 Z-{Math.Round(LiftHeight - layer.PositionZ + lastZPosition, 2)} F{RetractSpeed}");
                     }
                     else
                     {
-                        GCode.AppendLine($"G1 Z{layer.PositionZ - lastZPosition} F{LiftSpeed}");
+                        GCode.AppendLine($"G1 Z{Math.Round(layer.PositionZ - lastZPosition, 2)} F{LiftSpeed}");
                     }
                 }
+                // delay = max(extra['wait'], 500) + int(((int(lift)/(extra['lift_feed']/60)) + (int(lift)/(extra['lift_retract']/60)))*1000)
+                uint extraDelay = (uint) (((LiftHeight / (LiftSpeed / 60f)) + (LiftHeight / (RetractSpeed / 60f))) * 1000);
+                if (layerIndex < InitialLayerCount)
+                {
+                    extraDelay = (uint) Math.Max(extraDelay + 10000, layer.ExposureTime * 1000);
+                }
+                else
+                {
+                    extraDelay += Math.Max(OutputSettings.BlankingLayerTime, 500);
+                }
 
-                GCode.AppendLine($"{GCodeKeywordDelay} {layer.ExposureTime}");
+                GCode.AppendLine($"{GCodeKeywordDelay} {extraDelay}");
+                GCode.AppendLine();
 
                 lastZPosition = layer.PositionZ;
             }
diff --git a/UVtools.Core/FileFormats/ChituboxZipFile.cs b/UVtools.Core/FileFormats/ChituboxZipFile.cs
index b5b096a..f2ccae0 100644
--- a/UVtools.Core/FileFormats/ChituboxZipFile.cs
+++ b/UVtools.Core/FileFormats/ChituboxZipFile.cs
@@ -571,7 +571,7 @@ namespace UVtools.Core.FileFormats
                 var liftHeight = GetInitialLayerValueOrNormal(layerIndex, HeaderSettings.BottomLiftHeight,
                     HeaderSettings.LiftHeight);
 
-                var liftZHeight = liftHeight + this[layerIndex].PositionZ;
+                float liftZHeight = (float) Math.Round(liftHeight + this[layerIndex].PositionZ, 2);
 
                 var liftZSpeed = GetInitialLayerValueOrNormal(layerIndex, HeaderSettings.BottomLiftSpeed,
                     HeaderSettings.LiftSpeed);
@@ -580,7 +580,7 @@ namespace UVtools.Core.FileFormats
                     HeaderSettings.LightOffTime) * 1000;
 
                 var pwmValue = GetInitialLayerValueOrNormal(layerIndex, HeaderSettings.BottomLightPWM, HeaderSettings.LayerLightPWM);
-                var exposureTime = GetInitialLayerValueOrNormal(layerIndex, InitialExposureTime, LayerExposureTime) * 1000;
+                var exposureTime = this[layerIndex].ExposureTime * 1000;
 
                 GCode.AppendLine($";LAYER_START:{layerIndex}");
                 GCode.AppendLine($";currPos:{this[layerIndex].PositionZ}");
diff --git a/UVtools.Core/FileFormats/FileFormat.cs b/UVtools.Core/FileFormats/FileFormat.cs
index 1eaabe1..a9109db 100644
--- a/UVtools.Core/FileFormats/FileFormat.cs
+++ b/UVtools.Core/FileFormats/FileFormat.cs
@@ -55,7 +55,7 @@ namespace UVtools.Core.FileFormats
         {
             
             #region Instances
-            public static PrintParameterModifier InitialLayerCount { get; } = new PrintParameterModifier("Initial Layer Count", @"Modify 'Initial Layer Count' value", null,0, ushort.MaxValue);
+            public static PrintParameterModifier InitialLayerCount { get; } = new PrintParameterModifier("Initial Layer Count", @"Modify 'Initial Layer Count' value", null,0, ushort.MaxValue, 0);
             public static PrintParameterModifier InitialExposureSeconds { get; } = new PrintParameterModifier("Initial Exposure Time", @"Modify 'Initial Exposure Time' seconds", "s", 0.1M, byte.MaxValue);
             public static PrintParameterModifier ExposureSeconds { get; } = new PrintParameterModifier("Exposure Time", @"Modify 'Exposure Time' seconds", "s", 0.1M, byte.MaxValue);
             
@@ -67,8 +67,8 @@ namespace UVtools.Core.FileFormats
             public static PrintParameterModifier LiftSpeed { get; } = new PrintParameterModifier("Lift Speed", @"Modify 'Lift Speed' mm/min between layers", "mm/min", 10, 5000);
             public static PrintParameterModifier RetractSpeed { get; } = new PrintParameterModifier("Retract Speed", @"Modify 'Retract Speed' mm/min between layers", "mm/min", 10, 5000);
 
-            public static PrintParameterModifier BottomLightPWM { get; } = new PrintParameterModifier("Bottom Light PWM", @"Modify 'Bottom Light PWM' value", null, 50, byte.MaxValue);
-            public static PrintParameterModifier LightPWM { get; } = new PrintParameterModifier("Light PWM", @"Modify 'Light PWM' value", null, 50, byte.MaxValue);
+            public static PrintParameterModifier BottomLightPWM { get; } = new PrintParameterModifier("Bottom Light PWM", @"Modify 'Bottom Light PWM' value", null, 50, byte.MaxValue, 0);
+            public static PrintParameterModifier LightPWM { get; } = new PrintParameterModifier("Light PWM", @"Modify 'Light PWM' value", null, 50, byte.MaxValue, 0);
             #endregion
 
             #region Properties
@@ -97,16 +97,22 @@ namespace UVtools.Core.FileFormats
             /// Gets the maximum value
             /// </summary>
             public decimal Maximum { get; }
+
+            /// <summary>
+            /// Gets the number of decimal plates
+            /// </summary>
+            public byte DecimalPlates { get; }
             #endregion
 
             #region Constructor
-            public PrintParameterModifier(string name, string description, string valueUnit = null, decimal minimum = 0, decimal maximum = 1000)
+            public PrintParameterModifier(string name, string description, string valueUnit = null, decimal minimum = 0, decimal maximum = 1000, byte decimalPlates = 2)
             {
                 Name = name;
                 Description = description;
                 ValueUnit = valueUnit ?? string.Empty;
                 Minimum = minimum;
                 Maximum = maximum;
+                DecimalPlates = decimalPlates;
             }
             #endregion
 
diff --git a/UVtools.Core/FileFormats/ZCodexFile.cs b/UVtools.Core/FileFormats/ZCodexFile.cs
index 9a89749..caddead 100644
--- a/UVtools.Core/FileFormats/ZCodexFile.cs
+++ b/UVtools.Core/FileFormats/ZCodexFile.cs
@@ -264,11 +264,11 @@ namespace UVtools.Core.FileFormats
                         if (LiftHeight > 0)
                         {
                             GCode.AppendLine($"G1 Z{LiftHeight} F{LiftSpeed}");
-                            GCode.AppendLine($"G1 Z-{LiftHeight - layer.PositionZ + lastZPosition} F{RetractSpeed}");
+                            GCode.AppendLine($"G1 Z-{Math.Round(LiftHeight - layer.PositionZ + lastZPosition, 2)} F{RetractSpeed}");
                         }
                         else
                         {
-                            GCode.AppendLine($"G1 Z{layer.PositionZ- lastZPosition} F{LiftSpeed}");
+                            GCode.AppendLine($"G1 Z{Math.Round(layer.PositionZ- lastZPosition, 2)} F{LiftSpeed}");
                         }
                     }
                     /*else
diff --git a/UVtools.Core/Layer/LayerManager.cs b/UVtools.Core/Layer/LayerManager.cs
index 77efb72..c22756b 100644
--- a/UVtools.Core/Layer/LayerManager.cs
+++ b/UVtools.Core/Layer/LayerManager.cs
@@ -1485,9 +1485,12 @@ namespace UVtools.Core
             progress.Reset("Drawings", (uint) pixelHistory.Count);
 
             ConcurrentDictionary<uint, Mat> modfiedLayers = new ConcurrentDictionary<uint, Mat>();
-            for (var layerIndex = 0; layerIndex < pixelHistory.Count; layerIndex++)
+            for (var i = 0; i < pixelHistory.Count; i++)
             {
-                var operation = pixelHistory[layerIndex];
+                var operation = pixelHistory[i];
+                VectorOfVectorOfPoint layerContours = null;
+                Mat layerHierarchy = null;
+
                 if (operation.OperationType == PixelOperation.PixelOperationType.Drawing)
                 {
                     var operationDrawing = (PixelDrawing) operation;
@@ -1519,6 +1522,30 @@ namespace UVtools.Core
 
                     CvInvoke.PutText(mat, operationText.Text, operationText.Location, operationText.Font, operationText.FontScale, new MCvScalar(operationText.Color), operationText.Thickness, operationText.LineType, operationText.Mirror);
                 }
+                else if (operation.OperationType == PixelOperation.PixelOperationType.Eraser)
+                {
+                    var mat = modfiedLayers.GetOrAdd(operation.LayerIndex, u => this[operation.LayerIndex].LayerMat);
+
+                    if (ReferenceEquals(layerContours, null))
+                    {
+                        layerContours = new VectorOfVectorOfPoint();
+                        layerHierarchy = new Mat();
+
+                        CvInvoke.FindContours(mat, layerContours, layerHierarchy, RetrType.Ccomp,
+                            ChainApproxMethod.ChainApproxSimple);
+                    }
+
+                    if (mat.GetByte(operation.Location) >= 10)
+                    {
+                        for (int contourIdx = 0; contourIdx < layerContours.Size; contourIdx++)
+                        {
+                            if (!(CvInvoke.PointPolygonTest(layerContours[contourIdx], operation.Location, false) >= 0))
+                                continue;
+                            CvInvoke.DrawContours(mat, layerContours, contourIdx, new MCvScalar(0, 0, 0), -1);
+                            break;
+                        }
+                    }
+                }
                 else if (operation.OperationType == PixelOperation.PixelOperationType.Supports)
                 {
                     var operationSupport = (PixelSupport)operation;
@@ -1592,16 +1619,29 @@ namespace UVtools.Core
                     }
                 }
 
+                layerContours?.Dispose();
+                layerHierarchy?.Dispose();
+
                 progress++;
             }
 
             progress.Reset("Saving", (uint) modfiedLayers.Count);
-            foreach (var modfiedLayer in modfiedLayers)
+            Parallel.ForEach(modfiedLayers, (modfiedLayer, state) =>
+            {
+                this[modfiedLayer.Key].LayerMat = modfiedLayer.Value;
+                modfiedLayer.Value.Dispose();
+
+                lock (progress)
+                {
+                    progress++;
+                }
+            });
+            /*foreach (var modfiedLayer in modfiedLayers)
             {
                 this[modfiedLayer.Key].LayerMat = modfiedLayer.Value;
                 modfiedLayer.Value.Dispose();
                 progress++;
-            }
+            }*/
 
             //pixelHistory.Clear();
         }
diff --git a/UVtools.Core/PixelEditor/PixelEraser.cs b/UVtools.Core/PixelEditor/PixelEraser.cs
new file mode 100644
index 0000000..362d999
--- /dev/null
+++ b/UVtools.Core/PixelEditor/PixelEraser.cs
@@ -0,0 +1,21 @@
+/*
+ *                     GNU AFFERO GENERAL PUBLIC LICENSE
+ *                       Version 3, 19 November 2007
+ *  Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ *  Everyone is permitted to copy and distribute verbatim copies
+ *  of this license document, but changing it is not allowed.
+ */
+using System.Drawing;
+
+namespace UVtools.Core.PixelEditor
+{
+    public class PixelEraser : PixelOperation
+    {
+        public const byte Diameter = 4;
+
+        public PixelEraser(uint layerIndex, Point location) : base(PixelOperationType.Eraser, layerIndex, location)
+        {
+            Size = new Size(Diameter, Diameter);
+        }
+    }
+}
diff --git a/UVtools.Core/PixelEditor/PixelOperation.cs b/UVtools.Core/PixelEditor/PixelOperation.cs
index dc4c2d2..d64fce6 100644
--- a/UVtools.Core/PixelEditor/PixelOperation.cs
+++ b/UVtools.Core/PixelEditor/PixelOperation.cs
@@ -16,6 +16,7 @@ namespace UVtools.Core.PixelEditor
         {
             Drawing,
             Text,
+            Eraser,
             Supports,
             DrainHole,
         }
diff --git a/UVtools.Core/UVtools.Core.csproj b/UVtools.Core/UVtools.Core.csproj
index 8a7c465..4b7006f 100644
--- a/UVtools.Core/UVtools.Core.csproj
+++ b/UVtools.Core/UVtools.Core.csproj
@@ -10,12 +10,12 @@
     <RepositoryUrl>https://github.com/sn4k3/UVtools</RepositoryUrl>
     <PackageProjectUrl>https://github.com/sn4k3/UVtools</PackageProjectUrl>
     <Description>MSLA/DLP, file analysis, repair, conversion and manipulation</Description>
-    <Version>0.6.5.0</Version>
+    <Version>0.6.6.0</Version>
     <Copyright>Copyright © 2020 PTRTECH</Copyright>
     <PackageIcon>UVtools.png</PackageIcon>
     <Platforms>AnyCPU;x64</Platforms>
-    <AssemblyVersion>0.6.5.0</AssemblyVersion>
-    <FileVersion>0.6.5.0</FileVersion>
+    <AssemblyVersion>0.6.6.0</AssemblyVersion>
+    <FileVersion>0.6.6.0</FileVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
diff --git a/UVtools.GUI/App.config b/UVtools.GUI/App.config
index eaf7878..c0dba46 100644
--- a/UVtools.GUI/App.config
+++ b/UVtools.GUI/App.config
@@ -178,7 +178,7 @@
         <value>2</value>
       </setting>
       <setting name="LayerRepairDefaultOpeningIterations" serializeAs="String">
-        <value>1</value>
+        <value>0</value>
       </setting>
       <setting name="LayerRepairLayersIslands" serializeAs="String">
         <value>True</value>
@@ -189,7 +189,8 @@
       <setting name="LayerRepairRemoveEmptyLayers" serializeAs="String">
         <value>True</value>
       </setting>
-      <setting name="LayerRepairRemoveIslandsBelowEqualPixelsDefault" serializeAs="String">
+      <setting name="LayerRepairRemoveIslandsBelowEqualPixelsDefault"
+        serializeAs="String">
         <value>10</value>
       </setting>
       <setting name="PartialUpdateIslandsOnEditing" serializeAs="String">
diff --git a/UVtools.GUI/Forms/FrmInputBox.cs b/UVtools.GUI/Forms/FrmInputBox.cs
index 4788900..4ab9295 100644
--- a/UVtools.GUI/Forms/FrmInputBox.cs
+++ b/UVtools.GUI/Forms/FrmInputBox.cs
@@ -53,8 +53,8 @@ namespace UVtools.GUI.Forms
             
         }
 
-        public FrmInputBox(FileFormat.PrintParameterModifier modifier, decimal currentValue, byte decimals = 2) : this(modifier.Name,
-            modifier.Description, currentValue, modifier.ValueUnit, modifier.Minimum, modifier.Maximum, decimals)
+        public FrmInputBox(FileFormat.PrintParameterModifier modifier, decimal currentValue) : this(modifier.Name,
+            modifier.Description, currentValue, modifier.ValueUnit, modifier.Minimum, modifier.Maximum, modifier.DecimalPlates)
         { }
         public FrmInputBox(string title, string description, decimal currentValue, string valueUnit = null, decimal minValue = 0, decimal maxValue = 100, byte decimals = 2, string valueLabel = "Value") : this()
         {
diff --git a/UVtools.GUI/FrmMain.Designer.cs b/UVtools.GUI/FrmMain.Designer.cs
index d11056d..ce0bd94 100644
--- a/UVtools.GUI/FrmMain.Designer.cs
+++ b/UVtools.GUI/FrmMain.Designer.cs
@@ -127,7 +127,9 @@
             this.tsGCodeLabelLines = new System.Windows.Forms.ToolStripLabel();
             this.toolStripSeparator3 = new System.Windows.Forms.ToolStripSeparator();
             this.tsGcodeLabelChars = new System.Windows.Forms.ToolStripLabel();
-            this.tsGCodeButtonSave = new System.Windows.Forms.ToolStripButton();
+            this.tsGCodeButtonSave = new System.Windows.Forms.ToolStripSplitButton();
+            this.tsGCodeButtonSaveFile = new System.Windows.Forms.ToolStripMenuItem();
+            this.tsGCodeButtonSaveClipboard = new System.Windows.Forms.ToolStripMenuItem();
             this.tabPageIssues = new System.Windows.Forms.TabPage();
             this.flvIssues = new BrightIdeasSoftware.FastObjectListView();
             this.flvIssuesColType = ((BrightIdeasSoftware.OLVColumn)(new BrightIdeasSoftware.OLVColumn()));
@@ -200,6 +202,9 @@
             this.label23 = new System.Windows.Forms.Label();
             this.label24 = new System.Windows.Forms.Label();
             this.cbPixelEditorTextFontFace = new System.Windows.Forms.ComboBox();
+            this.tabPage5 = new System.Windows.Forms.TabPage();
+            this.panel7 = new System.Windows.Forms.Panel();
+            this.label30 = new System.Windows.Forms.Label();
             this.tabPage2 = new System.Windows.Forms.TabPage();
             this.label10 = new System.Windows.Forms.Label();
             this.nmPixelEditorSupportsBaseDiameter = new System.Windows.Forms.NumericUpDown();
@@ -238,6 +243,11 @@
             this.btnFirstLayer = new System.Windows.Forms.Button();
             this.toolTipInformation = new System.Windows.Forms.ToolTip(this.components);
             this.layerScrollTimer = new System.Windows.Forms.Timer(this.components);
+            this.label31 = new System.Windows.Forms.Label();
+            this.nmPixelEditorEraserLayersAbove = new System.Windows.Forms.NumericUpDown();
+            this.label32 = new System.Windows.Forms.Label();
+            this.nmPixelEditorEraserLayersBelow = new System.Windows.Forms.NumericUpDown();
+            this.label33 = new System.Windows.Forms.Label();
             this.menu.SuspendLayout();
             this.mainTable.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.scCenter)).BeginInit();
@@ -278,6 +288,8 @@
             ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorTextLayersBelow)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorTextFontScale)).BeginInit();
             this.panel6.SuspendLayout();
+            this.tabPage5.SuspendLayout();
+            this.panel7.SuspendLayout();
             this.tabPage2.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorSupportsBaseDiameter)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorSupportsPillarDiameter)).BeginInit();
@@ -293,6 +305,8 @@
             this.panel1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.tbLayer)).BeginInit();
             this.panel2.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorEraserLayersAbove)).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorEraserLayersBelow)).BeginInit();
             this.SuspendLayout();
             // 
             // menu
@@ -1281,14 +1295,34 @@
             // 
             this.tsGCodeButtonSave.Alignment = System.Windows.Forms.ToolStripItemAlignment.Right;
             this.tsGCodeButtonSave.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
+            this.tsGCodeButtonSave.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.tsGCodeButtonSaveFile,
+            this.tsGCodeButtonSaveClipboard});
             this.tsGCodeButtonSave.Image = global::UVtools.GUI.Properties.Resources.Save_16x16;
             this.tsGCodeButtonSave.ImageTransparentColor = System.Drawing.Color.Magenta;
             this.tsGCodeButtonSave.Name = "tsGCodeButtonSave";
-            this.tsGCodeButtonSave.Size = new System.Drawing.Size(23, 22);
-            this.tsGCodeButtonSave.Text = "Save GCode";
-            this.tsGCodeButtonSave.ToolTipText = "Save GCode to file";
+            this.tsGCodeButtonSave.Size = new System.Drawing.Size(32, 22);
+            this.tsGCodeButtonSave.Text = "Save to";
+            this.tsGCodeButtonSave.ToolTipText = "Save GCode to a file or clipboard";
+            this.tsGCodeButtonSave.ButtonClick += new System.EventHandler(this.tsGCodeButtonSave_ButtonClick);
             this.tsGCodeButtonSave.Click += new System.EventHandler(this.EventClick);
             // 
+            // tsGCodeButtonSaveFile
+            // 
+            this.tsGCodeButtonSaveFile.Image = global::UVtools.GUI.Properties.Resources.file_image_16x16;
+            this.tsGCodeButtonSaveFile.Name = "tsGCodeButtonSaveFile";
+            this.tsGCodeButtonSaveFile.Size = new System.Drawing.Size(141, 22);
+            this.tsGCodeButtonSaveFile.Text = "To &File";
+            this.tsGCodeButtonSaveFile.Click += new System.EventHandler(this.EventClick);
+            // 
+            // tsGCodeButtonSaveClipboard
+            // 
+            this.tsGCodeButtonSaveClipboard.Image = global::UVtools.GUI.Properties.Resources.clipboard_16x16;
+            this.tsGCodeButtonSaveClipboard.Name = "tsGCodeButtonSaveClipboard";
+            this.tsGCodeButtonSaveClipboard.Size = new System.Drawing.Size(141, 22);
+            this.tsGCodeButtonSaveClipboard.Text = "To &Clipboard";
+            this.tsGCodeButtonSaveClipboard.Click += new System.EventHandler(this.EventClick);
+            // 
             // tabPageIssues
             // 
             this.tabPageIssues.Controls.Add(this.flvIssues);
@@ -1663,6 +1697,7 @@
             // 
             this.tabControlPixelEditor.Controls.Add(this.tabPage1);
             this.tabControlPixelEditor.Controls.Add(this.tabPage4);
+            this.tabControlPixelEditor.Controls.Add(this.tabPage5);
             this.tabControlPixelEditor.Controls.Add(this.tabPage2);
             this.tabControlPixelEditor.Controls.Add(this.tabPage3);
             this.tabControlPixelEditor.Dock = System.Windows.Forms.DockStyle.Top;
@@ -2131,6 +2166,43 @@
             this.cbPixelEditorTextFontFace.Size = new System.Drawing.Size(257, 26);
             this.cbPixelEditorTextFontFace.TabIndex = 12;
             // 
+            // tabPage5
+            // 
+            this.tabPage5.Controls.Add(this.label31);
+            this.tabPage5.Controls.Add(this.nmPixelEditorEraserLayersAbove);
+            this.tabPage5.Controls.Add(this.label32);
+            this.tabPage5.Controls.Add(this.nmPixelEditorEraserLayersBelow);
+            this.tabPage5.Controls.Add(this.label33);
+            this.tabPage5.Controls.Add(this.panel7);
+            this.tabPage5.Location = new System.Drawing.Point(4, 27);
+            this.tabPage5.Name = "tabPage5";
+            this.tabPage5.Padding = new System.Windows.Forms.Padding(3);
+            this.tabPage5.Size = new System.Drawing.Size(372, 291);
+            this.tabPage5.TabIndex = 4;
+            this.tabPage5.Text = "Eraser";
+            this.tabPage5.UseVisualStyleBackColor = true;
+            // 
+            // panel7
+            // 
+            this.panel7.BackColor = System.Drawing.Color.WhiteSmoke;
+            this.panel7.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
+            this.panel7.Controls.Add(this.label30);
+            this.panel7.Dock = System.Windows.Forms.DockStyle.Top;
+            this.panel7.Location = new System.Drawing.Point(3, 3);
+            this.panel7.Name = "panel7";
+            this.panel7.Size = new System.Drawing.Size(366, 57);
+            this.panel7.TabIndex = 4;
+            // 
+            // label30
+            // 
+            this.label30.AutoSize = true;
+            this.label30.Location = new System.Drawing.Point(3, 9);
+            this.label30.Name = "label30";
+            this.label30.Size = new System.Drawing.Size(321, 36);
+            this.label30.TabIndex = 1;
+            this.label30.Text = "Right click over a white pixel to remove it whole \r\nlinked area (Fill with black)" +
+    "";
+            // 
             // tabPage2
             // 
             this.tabPage2.Controls.Add(this.label10);
@@ -2627,6 +2699,61 @@
             this.layerScrollTimer.Interval = 150;
             this.layerScrollTimer.Tick += new System.EventHandler(this.EventTimerTick);
             // 
+            // label31
+            // 
+            this.label31.AutoSize = true;
+            this.label31.Location = new System.Drawing.Point(302, 93);
+            this.label31.Name = "label31";
+            this.label31.Size = new System.Drawing.Size(49, 18);
+            this.label31.TabIndex = 27;
+            this.label31.Text = "Above";
+            // 
+            // nmPixelEditorEraserLayersAbove
+            // 
+            this.nmPixelEditorEraserLayersAbove.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.nmPixelEditorEraserLayersAbove.Location = new System.Drawing.Point(293, 66);
+            this.nmPixelEditorEraserLayersAbove.Maximum = new decimal(new int[] {
+            65535,
+            0,
+            0,
+            0});
+            this.nmPixelEditorEraserLayersAbove.Name = "nmPixelEditorEraserLayersAbove";
+            this.nmPixelEditorEraserLayersAbove.Size = new System.Drawing.Size(73, 24);
+            this.nmPixelEditorEraserLayersAbove.TabIndex = 26;
+            // 
+            // label32
+            // 
+            this.label32.AutoSize = true;
+            this.label32.Location = new System.Drawing.Point(115, 93);
+            this.label32.Name = "label32";
+            this.label32.Size = new System.Drawing.Size(49, 18);
+            this.label32.TabIndex = 25;
+            this.label32.Text = "Below";
+            // 
+            // nmPixelEditorEraserLayersBelow
+            // 
+            this.nmPixelEditorEraserLayersBelow.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.nmPixelEditorEraserLayersBelow.Location = new System.Drawing.Point(109, 66);
+            this.nmPixelEditorEraserLayersBelow.Maximum = new decimal(new int[] {
+            65535,
+            0,
+            0,
+            0});
+            this.nmPixelEditorEraserLayersBelow.Name = "nmPixelEditorEraserLayersBelow";
+            this.nmPixelEditorEraserLayersBelow.Size = new System.Drawing.Size(73, 24);
+            this.nmPixelEditorEraserLayersBelow.TabIndex = 24;
+            // 
+            // label33
+            // 
+            this.label33.AutoSize = true;
+            this.label33.Location = new System.Drawing.Point(7, 69);
+            this.label33.Name = "label33";
+            this.label33.Size = new System.Drawing.Size(96, 18);
+            this.label33.TabIndex = 23;
+            this.label33.Text = "Layers depth:";
+            // 
             // FrmMain
             // 
             this.AllowDrop = true;
@@ -2702,6 +2829,10 @@
             ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorTextFontScale)).EndInit();
             this.panel6.ResumeLayout(false);
             this.panel6.PerformLayout();
+            this.tabPage5.ResumeLayout(false);
+            this.tabPage5.PerformLayout();
+            this.panel7.ResumeLayout(false);
+            this.panel7.PerformLayout();
             this.tabPage2.ResumeLayout(false);
             this.tabPage2.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorSupportsBaseDiameter)).EndInit();
@@ -2724,6 +2855,8 @@
             this.panel1.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)(this.tbLayer)).EndInit();
             this.panel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorEraserLayersAbove)).EndInit();
+            ((System.ComponentModel.ISupportInitialize)(this.nmPixelEditorEraserLayersBelow)).EndInit();
             this.ResumeLayout(false);
             this.PerformLayout();
 
@@ -2770,7 +2903,6 @@
         private System.Windows.Forms.ToolStripLabel tsGCodeLabelLines;
         private System.Windows.Forms.ToolStripSeparator toolStripSeparator3;
         private System.Windows.Forms.ToolStripLabel tsGcodeLabelChars;
-        private System.Windows.Forms.ToolStripButton tsGCodeButtonSave;
         private System.Windows.Forms.ToolStrip tsProperties;
         private System.Windows.Forms.ToolStripLabel tsPropertiesLabelCount;
         private System.Windows.Forms.ToolStripSeparator toolStripSeparator4;
@@ -2939,6 +3071,17 @@
         private System.Windows.Forms.Label label29;
         private System.Windows.Forms.Label label28;
         private System.Windows.Forms.NumericUpDown nmPixelEditorDrawingThickness;
+        private System.Windows.Forms.ToolStripSplitButton tsGCodeButtonSave;
+        private System.Windows.Forms.ToolStripMenuItem tsGCodeButtonSaveFile;
+        private System.Windows.Forms.ToolStripMenuItem tsGCodeButtonSaveClipboard;
+        private System.Windows.Forms.TabPage tabPage5;
+        private System.Windows.Forms.Panel panel7;
+        private System.Windows.Forms.Label label30;
+        private System.Windows.Forms.Label label31;
+        private System.Windows.Forms.NumericUpDown nmPixelEditorEraserLayersAbove;
+        private System.Windows.Forms.Label label32;
+        private System.Windows.Forms.NumericUpDown nmPixelEditorEraserLayersBelow;
+        private System.Windows.Forms.Label label33;
     }
 }
 
diff --git a/UVtools.GUI/FrmMain.cs b/UVtools.GUI/FrmMain.cs
index 8f0d0aa..f1eb0ce 100644
--- a/UVtools.GUI/FrmMain.cs
+++ b/UVtools.GUI/FrmMain.cs
@@ -1292,6 +1292,11 @@ namespace UVtools.GUI
              ***********************/
             if (ReferenceEquals(sender, tsGCodeButtonSave))
             {
+                tsGCodeButtonSave.ShowDropDown();
+                return;
+            }
+            if (ReferenceEquals(sender, tsGCodeButtonSaveFile))
+            {
                 using (SaveFileDialog dialog = new SaveFileDialog())
                 {
                     dialog.Filter = "Text Files|.*txt";
@@ -1320,6 +1325,11 @@ namespace UVtools.GUI
                     return;
                 }
             }
+            if (ReferenceEquals(sender, tsGCodeButtonSaveClipboard))
+            {
+                Clipboard.SetText(SlicerFile.GCode.ToString());
+                return;
+            }
 
             /************************
              *     Issues Menu    *
@@ -2431,6 +2441,19 @@ namespace UVtools.GUI
             btnFirstLayer.Enabled = btnPreviousLayer.Enabled = layerNum > 0;
 
             var layer = SlicerFile[ActualLayer];
+            VectorOfVectorOfPoint layerContours = null;
+            Mat layerHierarchy = null;
+            Array layerHierarchyJagged = null;
+
+            void iniContours()
+            {
+                if (!ReferenceEquals(layerContours, null)) return;
+                layerContours = new VectorOfVectorOfPoint();
+                layerHierarchy = new Mat();
+                CvInvoke.FindContours(ActualLayerImage, layerContours, layerHierarchy, RetrType.Ccomp,
+                    ChainApproxMethod.ChainApproxSimple);
+                layerHierarchyJagged = layerHierarchy.GetData();
+            }
 
             try
             {
@@ -2440,10 +2463,11 @@ namespace UVtools.GUI
                 //pbLayer.Image = Image.FromStream(SlicerFile.LayerEntries[layerNum].Open());
                 //pbLayer.Image.RotateFlip(RotateFlipType.Rotate90FlipNone);
 
-
+                
                 Stopwatch watch = Stopwatch.StartNew();
-                ActualLayerImage?.Dispose();
+                
 
+                ActualLayerImage?.Dispose();
                 ActualLayerImage = SlicerFile[layerNum].LayerMat;
 
                 CvInvoke.CvtColor(ActualLayerImage, ActualLayerImageBgr, ColorConversion.Gray2Bgr);
@@ -2565,44 +2589,36 @@ namespace UVtools.GUI
                 if (tsLayerImageLayerOutlineHollowAreas.Checked)
                 {
                     //CvInvoke.Threshold(ActualLayerImage, grayscale, 1, 255, ThresholdType.Binary);
-                    using (VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint())
+                    iniContours();
+
+                    /*
+                     * hierarchy[i][0]: the index of the next contour of the same level
+                     * hierarchy[i][1]: the index of the previous contour of the same level
+                     * hierarchy[i][2]: the index of the first child
+                     * hierarchy[i][3]: the index of the parent
+                     */
+                    for (int i = 0; i < layerContours.Size; i++)
                     {
-                        using (Mat hierarchy = new Mat())
+                        if ((int)layerHierarchyJagged.GetValue(0, i, 2) == -1 && (int)layerHierarchyJagged.GetValue(0, i, 3) != -1)
                         {
-                            CvInvoke.FindContours(ActualLayerImage, contours, hierarchy, RetrType.Ccomp,
-                                ChainApproxMethod.ChainApproxSimple);
-
-                            /*
-                             * hierarchy[i][0]: the index of the next contour of the same level
-                             * hierarchy[i][1]: the index of the previous contour of the same level
-                             * hierarchy[i][2]: the index of the first child
-                             * hierarchy[i][3]: the index of the parent
-                             */
-                            var arr = hierarchy.GetData();
-                            for (int i = 0; i < contours.Size; i++)
-                            {
-                                if ((int) arr.GetValue(0, i, 2) == -1 && (int) arr.GetValue(0, i, 3) != -1)
-                                {
-                                    //var r = CvInvoke.BoundingRectangle(contours[i]);
-                                    //CvInvoke.Rectangle(ActualLayerImageBgr, r, new MCvScalar(0, 0, 255), 2);
-                                    CvInvoke.DrawContours(ActualLayerImageBgr, contours, i,
-                                        new MCvScalar(Settings.Default.OutlineHollowAreasColor.B,
-                                            Settings.Default.OutlineHollowAreasColor.G,
-                                            Settings.Default.OutlineHollowAreasColor.R),
-                                        Settings.Default.OutlineHollowAreasLineThickness);
-                                }
-                                /*else
-                                {
-                                    CvInvoke.DrawContours(ActualLayerImageBgr, contours, i,
-                                        new MCvScalar(Settings.Default.ResinTrapColor.B,
-                                            Settings.Default.IslandColor.G, Settings.Default.IslandColor.R),
-                                        2);
-                                }*/
-
-                                //if ((int) arr.GetValue(0, i, 2) == -1 && (int) arr.GetValue(0, i, 3) != -1)
-                                //    CvInvoke.DrawContours(ActualLayerImageBgr, contours, i, new MCvScalar(0, 0, 0), -1);
-                            }
+                            //var r = CvInvoke.BoundingRectangle(contours[i]);
+                            //CvInvoke.Rectangle(ActualLayerImageBgr, r, new MCvScalar(0, 0, 255), 2);
+                            CvInvoke.DrawContours(ActualLayerImageBgr, layerContours, i,
+                                new MCvScalar(Settings.Default.OutlineHollowAreasColor.B,
+                                    Settings.Default.OutlineHollowAreasColor.G,
+                                    Settings.Default.OutlineHollowAreasColor.R),
+                                Settings.Default.OutlineHollowAreasLineThickness);
                         }
+                        /*else
+                        {
+                            CvInvoke.DrawContours(ActualLayerImageBgr, contours, i,
+                                new MCvScalar(Settings.Default.ResinTrapColor.B,
+                                    Settings.Default.IslandColor.G, Settings.Default.IslandColor.R),
+                                2);
+                        }*/
+
+                        //if ((int) arr.GetValue(0, i, 2) == -1 && (int) arr.GetValue(0, i, 3) != -1)
+                        //    CvInvoke.DrawContours(ActualLayerImageBgr, contours, i, new MCvScalar(0, 0, 0), -1);
                     }
                 }
 
@@ -2645,6 +2661,20 @@ namespace UVtools.GUI
 
                         CvInvoke.PutText(ActualLayerImageBgr, operationText.Text, operationText.Location, operationText.Font, operationText.FontScale, new MCvScalar(color.B, color.G, color.R), operationText.Thickness, operationText.LineType, operationText.Mirror);
                     }
+                    else if (operation.OperationType == PixelOperation.PixelOperationType.Eraser)
+                    {
+                        iniContours();
+                        if(imageSpan[ActualLayerImage.GetPixelPos(operation.Location)] < 10) continue;
+                        var color = Settings.Default.PixelEditorRemovePixelColor;
+                        for (int i = 0; i < layerContours.Size; i++)
+                        {
+                            if (CvInvoke.PointPolygonTest(layerContours[i], operation.Location, false) >= 0)
+                            {
+                                CvInvoke.DrawContours(ActualLayerImageBgr, layerContours, i, new MCvScalar(color.B, color.G, color.R), -1);
+                                break;
+                            }
+                        }
+                    }
                     else if (operation.OperationType == PixelOperation.PixelOperationType.Supports)
                     {
                         var operationSupport = (PixelSupport)operation;
@@ -2682,7 +2712,9 @@ namespace UVtools.GUI
                 tsLayerBounds.Invalidate();
                 tsLayerInfo.Update();
                 tsLayerInfo.Refresh();
-                
+
+                layerContours?.Dispose();
+                layerHierarchy?.Dispose();
 
 
                 watch.Stop();
@@ -2965,7 +2997,7 @@ namespace UVtools.GUI
             PixelOperation operation = null;
             Bitmap bmp = pbLayer.Image as Bitmap;
 
-            if (tabControlPixelEditor.SelectedIndex == (int) PixelOperation.PixelOperationType.Drawing)
+            if (tabControlPixelEditor.SelectedIndex == (byte) PixelOperation.PixelOperationType.Drawing)
             {
                 LineType lineType = (LineType)cbPixelEditorDrawingLineType.SelectedItem;
                 PixelDrawing.BrushShapeType shapeType =
@@ -3018,7 +3050,7 @@ namespace UVtools.GUI
                     }
                 }
             }
-            else if (tabControlPixelEditor.SelectedIndex == (int)PixelOperation.PixelOperationType.Text)
+            else if (tabControlPixelEditor.SelectedIndex == (byte)PixelOperation.PixelOperationType.Text)
             {
                 if (string.IsNullOrEmpty(tbPixelEditorTextText.Text) || nmPixelEditorTextFontScale.Value < 0.2m) return;
 
@@ -3038,7 +3070,22 @@ namespace UVtools.GUI
                 ShowLayer();
                 return;
             }
-            else if (tabControlPixelEditor.SelectedIndex == (int) PixelOperation.PixelOperationType.Supports)
+            else if (tabControlPixelEditor.SelectedIndex == (byte) PixelOperation.PixelOperationType.Eraser)
+            {
+                if (ActualLayerImage.GetByte(x, y) < 10) return;
+                uint minLayer = (uint)Math.Max(0, ActualLayer - nmPixelEditorEraserLayersBelow.Value);
+                uint maxLayer = (uint)Math.Min(SlicerFile.LayerCount - 1, ActualLayer + nmPixelEditorEraserLayersAbove.Value);
+                for (uint layerIndex = minLayer; layerIndex <= maxLayer; layerIndex++)
+                {
+                    operation = new PixelEraser(layerIndex, new Point(x, y));
+
+                    if (PixelHistory.Contains(operation)) continue;
+                    PixelHistory.Add(operation);
+                }
+                ShowLayer();
+                return;
+            }
+            else if (tabControlPixelEditor.SelectedIndex == (byte) PixelOperation.PixelOperationType.Supports)
             {
                 if (ActualLayer == 0) return;
                 operation = new PixelSupport(ActualLayer, new Point(x, y),
@@ -3055,7 +3102,7 @@ namespace UVtools.GUI
                     gfx.FillEllipse(brush, Math.Max(0, location.X - shiftPos), Math.Max(0, location.Y - shiftPos), (int)nmPixelEditorSupportsTipDiameter.Value, (int)nmPixelEditorSupportsTipDiameter.Value);
                 }
             }
-            else if (tabControlPixelEditor.SelectedIndex == (int)PixelOperation.PixelOperationType.DrainHole)
+            else if (tabControlPixelEditor.SelectedIndex == (byte)PixelOperation.PixelOperationType.DrainHole)
             {
                 if (ActualLayer == 0) return;
                 operation = new PixelDrainHole(ActualLayer, new Point(x, y), (byte)nmPixelEditorDrainHoleDiameter.Value);
@@ -3541,6 +3588,7 @@ namespace UVtools.GUI
                     {
                         if (item.OperationType != PixelOperation.PixelOperationType.Drawing &&
                             item.OperationType != PixelOperation.PixelOperationType.Text &&
+                            item.OperationType != PixelOperation.PixelOperationType.Eraser &&
                             item.OperationType != PixelOperation.PixelOperationType.Supports) continue;
                         if (whiteListLayers.Contains(item.LayerIndex)) continue;
                         whiteListLayers.Add(item.LayerIndex);
@@ -3637,5 +3685,10 @@ namespace UVtools.GUI
             UpdateIssuesInfo();
             ShowLayer();
         }
+
+        private void tsGCodeButtonSave_ButtonClick(object sender, EventArgs e)
+        {
+
+        }
     }
 }
diff --git a/UVtools.GUI/FrmMain.resx b/UVtools.GUI/FrmMain.resx
index ff3506c..ed8862b 100644
--- a/UVtools.GUI/FrmMain.resx
+++ b/UVtools.GUI/FrmMain.resx
@@ -129,12 +129,6 @@
   <metadata name="tsLayer.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>201, 17</value>
   </metadata>
-  <metadata name="tsThumbnails.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-    <value>291, 17</value>
-  </metadata>
-  <metadata name="tsProperties.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-    <value>649, 17</value>
-  </metadata>
   <metadata name="tsGCode.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>551, 17</value>
   </metadata>
@@ -158,7 +152,7 @@
         AAEAAAD/////AQAAAAAAAAAMAgAAAFdTeXN0ZW0uV2luZG93cy5Gb3JtcywgVmVyc2lvbj00LjAuMC4w
         LCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODkFAQAAACZTeXN0
         ZW0uV2luZG93cy5Gb3Jtcy5JbWFnZUxpc3RTdHJlYW1lcgEAAAAERGF0YQcCAgAAAAkDAAAADwMAAABk
-        FAAAAk1TRnQBSQFMAgEBBgEAAbgBCAG4AQgBEAEAARABAAT/ASEBAAj/AUIBTQE2BwABNgMAASgDAAFA
+        FAAAAk1TRnQBSQFMAgEBBgEAAdABCAHQAQgBEAEAARABAAT/ASEBAAj/AUIBTQE2BwABNgMAASgDAAFA
         AwABIAMAAQEBAAEgBgABIC4AAxgBIgMwAUsDMAFMAzIBUDMAAQEDJAE2AysBQqwAAyIBMQNWAbkDXQHi
         AwAB/wMAAf8BKgEtASgB/gNTAawDTQGVAwABARgAAwkBDAMzAVIDUAGdA1cB6AMAAf4DKwH8Ay8BSqQA
         AyEBMANZAewBKwEuASkB+gNRAfcDUgH0A1MB8QNIAfYDQQH5AwAB/wNPAZsDAAEBCAADFQEdAz8BbgNV
@@ -206,7 +200,7 @@
         BAADUgGpAzQBVQM0AVUgAAM0AVUDNAFVA1IBqQgAA0oBiwMAAf8DAAH/A08BnAQAA00BlQMAAf8DVAGr
         CAADTwGcAwAB/wMAAf8DSgGLBAADUQGgAQABzAH3Af8BAAHMAfcB/wEAAcwB9wH/AQABzAH3Af8DQwF3
         CAADSgGNAgAB7AH/AgAB7AH/AgAB7wH/AgAB7AH/AgAB7AH/AgAB7QH/AVICUwGoA1IBqAMAAf8DAAH/
-        AwAB/wNMAfcDHgH9A1ABnwsAAf8DAAH/AwAB/wMAAf8DAAH/AwAB/wNSAagEAANSAakDNAFVAzQBVQNG
+        AwAB/wNRAfcDIQH9A1ABnwsAAf8DAAH/AwAB/wMAAf8DAAH/AwAB/wNSAagEAANSAakDNAFVAzQBVQNG
         AYADUgGpA1IBqQNSAakDUgGpA1IBqQNSAakDRQF/AzQBVQM0AVUDUgGpBAADUQGiAwAB/wMAAf8DSQGJ
         CAADLwFKAwAB/wNUAe4MAANJAYkDAAH/AwAB/wNRAaIDAAEBAT8CQAFvAT4CXAH4AQABzQH3Af8BAAHN
         AfcB/wMSARgIAAMBAQIDRgF+AlIBXQHwAgAB7gH/AgAB7gH/AkABqAH9AUUCRgF+AwMBBANSAagDAAH/
@@ -248,6 +242,27 @@
         AfwBPws=
 </value>
   </data>
+  <metadata name="tsThumbnails.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>291, 17</value>
+  </metadata>
+  <metadata name="tsProperties.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>649, 17</value>
+  </metadata>
+  <metadata name="tsGCode.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>551, 17</value>
+  </metadata>
+  <metadata name="tsIssuesLv.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>1504, 17</value>
+  </metadata>
+  <metadata name="tsIssues.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>765, 17</value>
+  </metadata>
+  <metadata name="tsLog.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>1423, 17</value>
+  </metadata>
+  <metadata name="toolTipInformation.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>863, 17</value>
+  </metadata>
   <metadata name="toolTipInformation.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>863, 17</value>
   </metadata>
diff --git a/UVtools.GUI/Properties/AssemblyInfo.cs b/UVtools.GUI/Properties/AssemblyInfo.cs
index ebfa840..348ca16 100644
--- a/UVtools.GUI/Properties/AssemblyInfo.cs
+++ b/UVtools.GUI/Properties/AssemblyInfo.cs
@@ -35,5 +35,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.6.5.0")]
-[assembly: AssemblyFileVersion("0.6.5.0")]
+[assembly: AssemblyVersion("0.6.6.0")]
+[assembly: AssemblyFileVersion("0.6.6.0")]
diff --git a/UVtools.GUI/Properties/Settings.Designer.cs b/UVtools.GUI/Properties/Settings.Designer.cs
index 776ee3e..b79750f 100644
--- a/UVtools.GUI/Properties/Settings.Designer.cs
+++ b/UVtools.GUI/Properties/Settings.Designer.cs
@@ -613,7 +613,7 @@ namespace UVtools.GUI.Properties {
         
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-        [global::System.Configuration.DefaultSettingValueAttribute("1")]
+        [global::System.Configuration.DefaultSettingValueAttribute("0")]
         public byte LayerRepairDefaultOpeningIterations {
             get {
                 return ((byte)(this["LayerRepairDefaultOpeningIterations"]));
diff --git a/UVtools.GUI/Properties/Settings.settings b/UVtools.GUI/Properties/Settings.settings
index 752d936..bf43d69 100644
--- a/UVtools.GUI/Properties/Settings.settings
+++ b/UVtools.GUI/Properties/Settings.settings
@@ -150,7 +150,7 @@
       <Value Profile="(Default)">2</Value>
     </Setting>
     <Setting Name="LayerRepairDefaultOpeningIterations" Type="System.Byte" Scope="User">
-      <Value Profile="(Default)">1</Value>
+      <Value Profile="(Default)">0</Value>
     </Setting>
     <Setting Name="LayerRepairLayersIslands" Type="System.Boolean" Scope="User">
       <Value Profile="(Default)">True</Value>