diff --git a/src/main/java/appeng/client/gui/implementations/GuiInterface.java b/src/main/java/appeng/client/gui/implementations/GuiInterface.java
index 8ba98460e..13ce93bd7 100644
--- a/src/main/java/appeng/client/gui/implementations/GuiInterface.java
+++ b/src/main/java/appeng/client/gui/implementations/GuiInterface.java
@@ -38,6 +38,7 @@ import appeng.client.gui.widgets.GuiSimpleImgButton;
 import appeng.client.gui.widgets.GuiTabButton;
 import appeng.client.gui.widgets.GuiToggleButton;
 import appeng.container.implementations.ContainerInterface;
+import appeng.core.AEConfig;
 import appeng.core.AELog;
 import appeng.core.localization.ButtonToolTips;
 import appeng.core.localization.ColorUtils;
@@ -246,12 +247,14 @@ public class GuiInterface extends GuiUpgradeable {
             }
         }
 
-        // highlight pattern slots with unsupported stack types
-        for (final Object obj : this.cvb.inventorySlots) {
-            if (obj instanceof Slot slot && hasInvalidTypeStack(slot.getStack())) {
-                final int sx = offsetX + slot.xDisplayPosition;
-                final int sy = offsetY + slot.yDisplayPosition;
-                drawRect(sx, sy, sx + 16, sy + 16, ColorUtils.itemSlotOverlayFluidMismatch.getColor());
+        if (AEConfig.instance.highlightPatternTypeMismatchInGUI) {
+            // highlight pattern slots with unsupported stack types
+            for (final Object obj : this.cvb.inventorySlots) {
+                if (obj instanceof Slot slot && hasInvalidTypeStack(slot.getStack())) {
+                    final int sx = offsetX + slot.xDisplayPosition;
+                    final int sy = offsetY + slot.yDisplayPosition;
+                    drawRect(sx, sy, sx + 16, sy + 16, ColorUtils.itemSlotOverlayFluidMismatch.getColor());
+                }
             }
         }
     }
@@ -261,8 +264,7 @@ public class GuiInterface extends GuiUpgradeable {
         final NBTTagCompound nbt = stack.getTagCompound();
         if (nbt.getBoolean("InvalidPattern")) return false;
         IAEStackType<?>[] supportedTypes = ((ContainerInterface) this.cvb).getSupportedStackTypes();
-        return hasInvalidTypeInTagList(nbt.getTagList("in", NBT.TAG_COMPOUND), supportedTypes)
-                || hasInvalidTypeInTagList(nbt.getTagList("out", NBT.TAG_COMPOUND), supportedTypes);
+        return hasInvalidTypeInTagList(nbt.getTagList("in", NBT.TAG_COMPOUND), supportedTypes);
     }
 
     private static boolean hasInvalidTypeInTagList(final NBTTagList tagList, IAEStackType<?>[] supportedTypes) {
diff --git a/src/main/java/appeng/client/gui/implementations/GuiInterfaceTerminal.java b/src/main/java/appeng/client/gui/implementations/GuiInterfaceTerminal.java
index 2b6eaf809..368d0b115 100644
--- a/src/main/java/appeng/client/gui/implementations/GuiInterfaceTerminal.java
+++ b/src/main/java/appeng/client/gui/implementations/GuiInterfaceTerminal.java
@@ -953,7 +953,8 @@ public class GuiInterfaceTerminal extends AEBaseGui
                         } else if (entry.filteredRecipes[slotIdx]) {
                             GL11.glTranslatef(0.0f, 0.0f, ITEM_STACK_OVERLAY_Z);
                             drawRect(0, 0, 16, 16, ColorUtils.itemSlotOverlayUnpowered.getColor());
-                        } else if (hasInvalidTypeStack(stack, entry.supportedStackTypes)) {
+                        } else if (AEConfig.instance.highlightPatternTypeMismatchInGUI
+                                && hasInvalidTypeStack(stack, entry.supportedStackTypes)) {
                             GL11.glTranslatef(0.0f, 0.0f, SLOT_Z - ITEM_STACK_OVERLAY_Z);
                             drawRect(0, 0, 16, 16, ColorUtils.itemSlotOverlayFluidMismatch.getColor());
                         }
@@ -1371,8 +1372,7 @@ public class GuiInterfaceTerminal extends AEBaseGui
         if (stack == null || stack.getTagCompound() == null) return false;
         final NBTTagCompound nbt = stack.getTagCompound();
         if (nbt.getBoolean("InvalidPattern")) return false;
-        return hasInvalidTypeInTagList(nbt.getTagList("in", NBT.TAG_COMPOUND), supportedTypes)
-                || hasInvalidTypeInTagList(nbt.getTagList("out", NBT.TAG_COMPOUND), supportedTypes);
+        return hasInvalidTypeInTagList(nbt.getTagList("in", NBT.TAG_COMPOUND), supportedTypes);
     }
 
     private static boolean hasInvalidTypeInTagList(final NBTTagList tagList, final IAEStackType<?>[] supportedTypes) {
diff --git a/src/main/java/appeng/core/AEConfig.java b/src/main/java/appeng/core/AEConfig.java
index ab530f7d7..c595b7184 100644
--- a/src/main/java/appeng/core/AEConfig.java
+++ b/src/main/java/appeng/core/AEConfig.java
@@ -95,6 +95,7 @@ public final class AEConfig extends Configuration implements IConfigurableObject
     public int MEMonitorableSmallSize = 6;
     public int InterfaceTerminalSmallSize = 6;
     public boolean highlightWhenSomethingStuckInInterface = true;
+    public boolean highlightPatternTypeMismatchInGUI = true;
     public int screenColor = 0xFFFFFF;
 
     /** Max rows for crafting pins section (1-16). Caps the cycle button options. */
@@ -392,6 +393,10 @@ public final class AEConfig extends Configuration implements IConfigurableObject
                 .getBoolean(true);
         this.highlightWhenSomethingStuckInInterface = this.get("Client", "highlightWhenSomethingStuckInInterface", true)
                 .getBoolean(true);
+        final Property highlightPatternTypeMismatchInGUI = this
+                .get("Client", "highlightPatternTypeMismatchInGUI", true);
+        highlightPatternTypeMismatchInGUI.comment = "Highlight pattern slots in red when the pattern uses unsupported stack types.";
+        this.highlightPatternTypeMismatchInGUI = highlightPatternTypeMismatchInGUI.getBoolean(true);
         this.MEMonitorableSmallSize = this.get("Client", "MEMonitorableSmallSize", 6).getInt(6);
         this.InterfaceTerminalSmallSize = this.get("Client", "InterfaceTerminalSmallSize", 6).getInt(6);
         Property screenColorProperty = this.get("Client", "screenColor", this.screenColor);