Highlights custom server items in container GUIs with a semi-transparent color overlay, making it easy to spot plugin-created or specially-named items at a glance. This mod was specifically designed for LumaMC, effectiveness may not be guaranteed on other servers.

How it works

When you open any container (chest, inventory, shop, etc.), Custom Item Highlighter scans each slot and draws a colored overlay on any item that has been modified by a server plugin — either through a custom display name or custom NBT data. No more squinting at item names to figure out what's special.

Items with "tier" in the lore get a border the color of the tier, with multi-colored tiers getting a color warp effect that goes through all the colors of that tier.

Items without the "tier" keyword use the first color that appears in the item name.

Items with neither default to white.

Features

• Two detection methods:
• Custom name — flags items with a plugin-set display name
• Custom data — flags items with custom NBT attached by a plugin
• Master toggle — disable highlighting entirely without touching other settings
• In-game config — tweak everything live via Mod Menu (optional)

Requirements

• Fabric Loader 0.18.6+
• Fabric API 0.141.3+1.21.11
• Minecraft 1.21.11
• Cloth Config is bundled — no extra install needed. Mod Menu is optional but recommended for in-game settings.