No italics in disk name.

src/main/java/net/brokenmoon/redcontrol/RedControl.java

@@ -35,6 +35,7 @@ import net.minecraft.resource.Resource;
 import net.minecraft.resource.ResourceManager;
 import net.minecraft.resource.ResourceType;
 import net.minecraft.server.world.ServerWorld;
+import net.minecraft.text.Style;
 import net.minecraft.text.Text;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.math.BlockPos;
@@ -46,6 +47,9 @@ import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
+import static net.minecraft.item.ItemStack.DISPLAY_KEY;
+import static net.minecraft.item.ItemStack.NAME_KEY;
+
 public class RedControl implements ModInitializer {
 	// This logger is used to write text to the console and the log file.
 	// It is considered best practice to use your mod id as the logger's name.
@@ -70,9 +74,12 @@ public class RedControl implements ModInitializer {
 	//Item Stacks
 	public static final ItemStack BASIC_DISK = new ItemStack(FLOPPY_ITEM);
 	public static final NbtCompound BASIC_NBT = new NbtCompound();
+	public static final NbtCompound BASIC_SUB_NBT = new NbtCompound();
 
 	public static final ItemStack SLIDESHOW_DISK = new ItemStack(FLOPPY_ITEM);
 	public static final NbtCompound SLIDESHOW_NBT = new NbtCompound();
+	public static final NbtCompound SLIDESHOW_SUB_NBT = new NbtCompound();
+
 
 	//Item group
 	public static final ItemGroup ITEM_GROUP = FabricItemGroup.builder()
@@ -95,7 +102,8 @@ public class RedControl implements ModInitializer {
 				BASIC_NBT.putString("serial", "BASIC");
 				BASIC_NBT.putInt("CustomModelData", 1);
 				BASIC_DISK.setNbt(BASIC_NBT);
-				BASIC_DISK.setCustomName(Text.literal("Basic boot disk"));
+				BASIC_SUB_NBT.putString(NAME_KEY, Text.Serialization.toJsonString(Text.literal("Basic Disk").setStyle(Style.EMPTY.withItalic(false))));
+				BASIC_DISK.setSubNbt(DISPLAY_KEY, BASIC_SUB_NBT);
 				entries.add(BASIC_DISK);
 
 				//Slideshow
@@ -103,7 +111,8 @@ public class RedControl implements ModInitializer {
 				SLIDESHOW_NBT.putString("serial", "SLIDESHOW");
 				SLIDESHOW_NBT.putInt("CustomModelData", 2);
 				SLIDESHOW_DISK.setNbt(SLIDESHOW_NBT);
-				SLIDESHOW_DISK.setCustomName(Text.literal("Slideshow disk"));
+				SLIDESHOW_SUB_NBT.putString(NAME_KEY, Text.Serialization.toJsonString(Text.literal("Slideshow Disk").setStyle(Style.EMPTY.withItalic(false))));
+				SLIDESHOW_DISK.setSubNbt(DISPLAY_KEY, SLIDESHOW_SUB_NBT);
 				entries.add(SLIDESHOW_DISK);
 			}))
 			.build();

src/main/java/net/brokenmoon/redcontrol/blockentities/DriveEntity.java

@@ -9,6 +9,7 @@ import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NbtCompound;
+import net.minecraft.text.Style;
 import net.minecraft.text.Text;
 import net.minecraft.util.ActionResult;
 import net.minecraft.util.Hand;
@@ -18,6 +19,9 @@ import java.net.URI;
 import java.nio.ByteBuffer;
 import java.util.UUID;
 
+import static net.minecraft.item.ItemStack.DISPLAY_KEY;
+import static net.minecraft.item.ItemStack.NAME_KEY;
+
 public class DriveEntity extends Peripheral {
 
     private static final int SECTOR_SIZE = 0x80;
@@ -92,7 +96,9 @@ public class DriveEntity extends Peripheral {
                         this.buffer.position(0);
                         byte[] diskName = new byte[SECTOR_SIZE];
                         this.buffer.get(diskName);
-                        this.disk.setCustomName(Text.literal(new String(diskName).trim()));
+                        NbtCompound sub_nbt = new NbtCompound();
+                        sub_nbt.putString(NAME_KEY, Text.Serialization.toJsonString(Text.literal(new String(diskName).trim()).setStyle(Style.EMPTY.withItalic(false))));
+                        this.disk.setSubNbt(DISPLAY_KEY, sub_nbt);
                         this.driver.writeDiskName(diskName);
                         this.command = 0;
                         break;