Fix issue 11938

Simon Zhao (BEYONDSOFT CONSULTING INC) · Simon Zhao (BEYONDSOFT CONSULTING INC) · commit 221766532af9 · 2026-03-02T16:35:05.000+08:00
diff --git a/src/System.Windows.Forms/System/Windows/Forms/Controls/ProgressBar/ProgressBar.cs b/src/System.Windows.Forms/System/Windows/Forms/Controls/ProgressBar/ProgressBar.cs
@@ -81,6 +81,8 @@ protected override void OnCreateControl()
 
         if (Application.IsDarkModeEnabled)
         {
+            BackColor = SystemColors.ControlDarkDark;
+            ForeColor = SystemColors.Highlight;
             // Disables Visual Styles for the ProgressBar.
             PInvoke.SetWindowTheme(HWND, " ", " ");
         }

Original file line number	Diff line number	Diff line change
`@@ -81,6 +81,8 @@ protected override void OnCreateControl()`
`81`	`81`
`82`	`82`	`if (Application.IsDarkModeEnabled)`
`83`	`83`	`{`
	`84`	`+ BackColor = SystemColors.ControlDarkDark;`
	`85`	`+ ForeColor = SystemColors.Highlight;`
`84`	`86`	`// Disables Visual Styles for the ProgressBar.`
`85`	`87`	`PInvoke.SetWindowTheme(HWND, " ", " ");`
`86`	`88`	`}`