HighLightItem

Evidence

Ran on Kiln's test stand (2026-11-04): HighLightItem did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/screens/options/OptionsSubScreen.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
• net.minecraft.client.OptionInstance
• net.minecraft.client.OptionInstance.CaptionBasedToString
• net.minecraft.client.OptionInstance.Enum
• net.minecraft.client.OptionInstance.IntRange
• net.minecraft.client.OptionInstance.TooltipSupplier
• net.minecraft.client.OptionInstance.ValueSet
• net.minecraft.client.OptionInstance.ValueUpdateListener
• net.minecraft.client.Options
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.OptionsList
• net.minecraft.client.gui.components.Tooltip
• net.minecraft.client.gui.components.toasts.SystemToast
• net.minecraft.client.gui.components.toasts.SystemToast.SystemToastId
• net.minecraft.client.gui.components.toasts.Toast
• net.minecraft.client.gui.components.toasts.Toast.Visibility
• net.minecraft.client.gui.components.toasts.ToastManager
• net.minecraft.client.gui.layouts.HeaderAndFooterLayout
• net.minecraft.client.gui.layouts.LayoutSettings
• net.minecraft.client.gui.layouts.LinearLayout
• net.minecraft.client.gui.screens.options.OptionsSubScreen
• net.minecraft.client.input.KeyEvent
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.synchronization.ArgumentTypeInfo
• net.minecraft.commands.synchronization.ArgumentTypeInfo.Template
• net.minecraft.commands.synchronization.SingletonArgumentInfo
• net.minecraft.core.component.DataComponentMap
• net.minecraft.util.ARGB
• net.minecraft.world.level.block.ColorCollection
• Minecraft.options
• Minecraft.setScreenAndShow()
• Font.split()
• Font.width()
• Gui.toastManager()
• GuiGraphicsExtractor.blit()
• GuiGraphicsExtractor.blitSprite()
• and 6 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Minecraft mod that highlights inventory items similar to the one hovered over.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file highlightitem-fabric-26.3-3.0.0.jar. The scan reads the mod's classes; it does not run them.