Custom Block Highlight

Custom Block Highlight

Revitalize the block outline.

by
88.9K Downloads
fabricdecorationgame-mechanics
Rent Server with this Mod

Screenshots

Config Screen

About this Mod

Custom Block Outline

This mod provides powerful options to make the block outline interesting for once.

Features include:

  • Gradients
  • Rainbow (with gradients)
  • Selective rendering of sides based on conditions (air exposed sides only, for example)
  • Animations for the outline (movement and fading)
  • Support for connected blocks
  • Scale adjustment
  • Drawing outline above other terrain (yes. means you can see it through walls)
  • Utilities for CPVP players
  • Copying and loading configurations from files

Slightly outdated showcase video:

Contact

I won't backport this mod to older versions since I'm using YACL V3, which only supports downwards to 1.19.4.

If you want to contact me about anything regarding the mod (e.g suggestions / feature requests, bug reports, translations, etc.), join the discord linked

Available Versions

Custom Block Highlight 2.7release
MC 1.21.4fabric
April 12, 2026
Custom Block Highlight 2.6release
MC 1.21.4fabric
July 7, 2025
Custom Block Highlight 2.5release
MC 1.21.3fabric
November 1, 2024
Custom Block Highlight 2.5release
MC 1.21.2fabric
November 1, 2024
Custom Block Highlight 2.5release
MC 1.21.1fabric
August 24, 2024

How to Install Custom Block Highlight on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).

3

Install Mod

Open the mod browser in the dashboard and search for "Custom Block Highlight". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.2, 26.1.1, 26.1 (+19 more)

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Custom Block Highlight server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.

Is Custom Block Highlight compatible with fabric?

Custom Block Highlight officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Custom Block Highlight – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Custom Block Highlight consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Custom Block Highlight with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU Lesser General Public License v3.0 only
Server-side
Unsupported

Supported Versions

26.1.226.1.126.11.21.111.21.101.21.81.21.71.21.61.21.51.21.4+12 more