ModsFinder

Slot Colorizer

by yfc

With Slot Colorizer installed, players can tint the fill color of inventory slots according to the item they hold, and pick the colors through a color picker.

FabricClient-side onlyCreative Commons Attribution 4.01.21 – 1.21.4

What it does

The mod colors the background of item slots in the inventory based on the item a player is holding. Colors are set per item through a custom configuration menu, and items or blocks can be added to or removed from the list by editing the config. Fabric API is required, and Mod Menu is optional for opening the settings screen from the mod list.

Client-side only: the server does not need the mod, and players join servers without installing it. Slot Colorizer is published for Fabric alone, with files covering 1.21 – 1.21.4 and 1.0 for 1.21.4 as the latest release. It is released under Creative Commons Attribution 4.0 and is not open source. The mod depends on the Items library by the same author, which is listed as its dependency alongside Fabric API.

Key features

  1. Slot fill colors

    Item slots take a fill color that matches the item currently held, which makes sorting and scanning inventories quicker.

  2. Color picker interface

    A custom color picker lets players choose the fill color for each item without editing files by hand.

  3. Config-driven item list

    Items and blocks can be added to or removed from the colorized list through the configuration file.

  4. Configuration menu

    A custom menu in the settings screen gathers the color options, and Mod Menu can open it from the mod list.

Compatibility

Latest build for each game version and loader.

1.21.41.0
1.21.31.0
1.21.21.0
1.21.11.0
1.211.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

How it compares

Full comparison

Elytra Slot is a Fabric mod for 1.21.11 that runs on client and server, under the MIT License and not open source, so it needs installing on both sides. Bookfiller is a Fabric client mod for 1.21.8 under the GNU General Public License v3.0 only and is open source. Slot Colorizer covers 1.21 – 1.21.4 and is client-side only under Creative Commons Attribution 4.0, so only players need it.

ModLoadersGame versionsEnvironmentUpdated
Slot ColorizerFabric1.21 – 1.21.4Client-side only2025-10-29
Elytra SlotFabric1.21.11Client and server2026-06-07
BookfillerFabric1.21.8Client-side only2026-03-02

Questions

Does Slot Colorizer need Fabric API?

Yes. Fabric API is a required dependency and must be installed alongside Slot Colorizer on Fabric.

Do servers need to install Slot Colorizer?

No. The mod is client-side only, so a server runs without it and players can join without it.

Which game versions does Slot Colorizer support?

Files cover 1.21, 1.21.1, 1.21.2, 1.21.3 and 1.21.4, with 1.0 as the latest release for 1.21.4.

In the catalog

Slot Colorizer is one of 17,631 Equipment mods on ModsFinder, and one of 8,894 Equipment mods for Fabric. 17,979 mods support Minecraft 1.21.4.

Equipment mods17,631Fabric modsMods for 1.21.417,979

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What the author says

Item Slot Colorizer that depends on your items!
yfc, on the Modrinth page

Official listing

Owner
yfc
Published
2025-10-29
Updated on Modrinth
2025-10-29
Facts verified
2026-10-15

Tags

EquipmentGame mechanicsUtility
Open on ModrinthCompare