diff --git a/ShareX.HelpersLib/Controls/SplitContainerCustomSplitter.cs b/ShareX.HelpersLib/Controls/SplitContainerCustomSplitter.cs
index 0c7b849f8..0dbd38e17 100644
--- a/ShareX.HelpersLib/Controls/SplitContainerCustomSplitter.cs
+++ b/ShareX.HelpersLib/Controls/SplitContainerCustomSplitter.cs
@@ -23,7 +23,6 @@ You should have received a copy of the GNU General Public License
 
 #endregion License Information (GPL v3)
 
-using System.ComponentModel;
 using System.Drawing;
 using System.Windows.Forms;
 
@@ -31,15 +30,12 @@ namespace ShareX.HelpersLib
 {
     public class SplitContainerCustomSplitter : SplitContainer
     {
-        [DefaultValue(typeof(Color), "Black")]
-        public Color SplitterColor { get; set; } = Color.Black;
-
         protected override void OnPaint(PaintEventArgs pevent)
         {
             Graphics g = pevent.Graphics;
             Rectangle rect = SplitterRectangle;
 
-            using (Pen pen = new Pen(SplitterColor))
+            using (Pen pen = new Pen(ProfessionalColors.SeparatorDark))
             {
                 if (Orientation == Orientation.Horizontal)
                 {
diff --git a/ShareX.HelpersLib/Controls/ToolStripBorderRight.cs b/ShareX.HelpersLib/Controls/ToolStripBorderRight.cs
index 55d717e84..9a89f8820 100644
--- a/ShareX.HelpersLib/Controls/ToolStripBorderRight.cs
+++ b/ShareX.HelpersLib/Controls/ToolStripBorderRight.cs
@@ -34,7 +34,10 @@ protected override void OnPaint(PaintEventArgs e)
         {
             base.OnPaint(e);
 
-            e.Graphics.DrawLine(Pens.DarkGray, new Point(ClientSize.Width - 1, 0), new Point(ClientSize.Width - 1, ClientSize.Height - 1));
+            using (Pen pen = new Pen(ProfessionalColors.SeparatorDark))
+            {
+                e.Graphics.DrawLine(pen, new Point(ClientSize.Width - 1, 0), new Point(ClientSize.Width - 1, ClientSize.Height - 1));
+            }
         }
 
         protected override void OnPaintBackground(PaintEventArgs e)
diff --git a/ShareX.HistoryLib/HistoryForm.Designer.cs b/ShareX.HistoryLib/HistoryForm.Designer.cs
index 73500e84b..3bf109669 100644
--- a/ShareX.HistoryLib/HistoryForm.Designer.cs
+++ b/ShareX.HistoryLib/HistoryForm.Designer.cs
@@ -74,7 +74,6 @@ private void InitializeComponent()
             // scMain.Panel2
             // 
             this.scMain.Panel2.Controls.Add(this.panel1);
-            this.scMain.SplitterColor = System.Drawing.Color.DarkGray;
             this.scMain.SplitterMoved += new System.Windows.Forms.SplitterEventHandler(this.scMain_SplitterMoved);
             // 
             // lvHistory
diff --git a/ShareX/Forms/MainForm.Designer.cs b/ShareX/Forms/MainForm.Designer.cs
index 1c130ccc2..7d0b0e842 100644
--- a/ShareX/Forms/MainForm.Designer.cs
+++ b/ShareX/Forms/MainForm.Designer.cs
@@ -294,7 +294,6 @@ private void InitializeComponent()
             // scMain.Panel2
             // 
             this.scMain.Panel2.Controls.Add(this.pbPreview);
-            this.scMain.SplitterColor = System.Drawing.Color.DarkGray;
             this.scMain.SplitterMoved += new System.Windows.Forms.SplitterEventHandler(this.scMain_SplitterMoved);
             // 
             // lblMainFormTip