Fix Write-Host to respect OutputRendering = PlainText (#21188)

SteveL-MSFT · web-flow · commit 65b899c3a976 · 2025-08-04T16:31:59.000-07:00
diff --git a/src/System.Management.Automation/engine/hostifaces/InternalHostUserInterface.cs b/src/System.Management.Automation/engine/hostifaces/InternalHostUserInterface.cs
@@ -209,7 +209,14 @@ public override
                 return;
             }
 
-            _externalUI.Write(foregroundColor, backgroundColor, value);
+            if (PSStyle.Instance.OutputRendering == OutputRendering.PlainText)
+            {
+                _externalUI.Write(value);
+            }
+            else
+            {
+                _externalUI.Write(foregroundColor, backgroundColor, value);
+            }
         }
 
         /// <summary>
@@ -303,7 +310,14 @@ public override
                 return;
             }
 
-            _externalUI.WriteLine(foregroundColor, backgroundColor, value);
+            if (PSStyle.Instance.OutputRendering == OutputRendering.PlainText)
+            {
+                _externalUI.WriteLine(value);
+            }
+            else
+            {
+                _externalUI.WriteLine(foregroundColor, backgroundColor, value);
+            }
         }
 
         /// <summary>
