ModsFinder

Block HightlightFX

by wildbeast42

With Block HightlightFX installed, the block under the crosshair gets a custom colored outline or fill, with adjustable color and opacity.

FabricClient-side onlyGNU Lesser General Public License v3.0 only1.21.2 – 26.3

What it does

The mod is a visual client tool that changes how the vanilla block outline looks. Players can pick the outline color and its opacity, and can display either a full outline or a filled overlay. Where a block looks smaller than its full cube, the highlight can still be drawn at full block size, so the boundary of the block can be read at a glance.

Block HightlightFX runs on the Fabric loader only, with builds for 1.21.2 – 26.3 across 14 release versions. Its required dependencies are Fabric API, Mod Menu, SettingsManagerLib and YetAnotherConfigLib (YACL), and the settings screen opens through Mod Menu. Only the client needs it, so servers run without it. The code is licensed under the GNU Lesser General Public License v3.0 only and is not open source.

Key features

  1. Custom outline color

    The vanilla block outline can be recolored, so the highlight matches the player's texture pack or preference.

  2. Adjustable opacity

    The transparency of the highlight is configurable, from faint to fully solid.

  3. Outline and fill display

    The highlight can be drawn as an outline or as a filled block shape, depending on the setting chosen.

  4. Full-size highlight

    A block that renders smaller than a full cube, such as a slab or fence, can show a highlight at full block size.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.31.0.5+26.3
26.21.0.5+26.1
26.1.21.0.5+26.1
26.1.11.0.5+26.1
26.11.0.5+26.1
1.21.x9 of 9 versions with builds
1.21.111.0.5+1.21.11
1.21.101.0.5+1.21.10
1.21.81.0.3+1.21.8
1.21.71.0.3+1.21.8
1.21.61.0.3+1.21.8
1.21.51.0.3+1.21.8
1.21.41.0.3+1.21.8
1.21.31.0.3+1.21.8
1.21.21.0.2
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 4

SettingsManagerLibA simple, easy-to-set-up config library using YACL and Mod Menu to create simple or complex config menus
Required
Mod MenuAdds a mod menu to view the list of mods you have installed.
Required
Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required
YetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!
Required

How it compares

Full comparison

Dissy Block Overlay is client-side only and covers 1.21.11 – 26.2 on Fabric, but its license is All rights reserved. Dynamic Outlines is also client-side only on Fabric, with files for 1.21 – 26.2, under the CC0 1.0 Universal license. Block Outline FX is a Fabric client mod with a single version, 1.21.4, under the MIT License.

ModLoadersGame versionsEnvironmentUpdated
Block HightlightFXFabric1.21.2 – 26.3Client-side only2026-10-13
Dissy Block OverlayFabric1.21.11 – 26.2Client-side only2026-09-22
Dynamic OutlinesFabric1.21 – 26.2Client-side only2026-07-27
Block Outline FXFabric1.21.4Client-side only2026-03-09

Questions

Does Block HightlightFX need Fabric API?

Yes. Fabric API is a required dependency, along with Mod Menu, SettingsManagerLib and YetAnotherConfigLib (YACL). All four must be installed for the mod to load.

Does the server need Block HightlightFX?

No. Players add it to their own game, and a server needs no copy.

Which game versions does Block HightlightFX support?

The mod has Fabric builds for 1.21.2 – 26.3. The latest file is 1.0.5+26.3 for 26.3, published 2026-10-13.

In the catalog

Block HightlightFX is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 8,071 mods support Minecraft 26.3.

Decoration mods12,078Fabric modsMods for 26.38,071

More from wildbeast42

All projects
SettingsManagerLib1.21.3 – 26.3CrosshairFX1.21.2 – 26.3Unbreakable Leads1.21.6 – 26.3Item Counter1.21.6 – 26.3Reveal Hidden Raiders1.20.5 – 26.3Unbreakable Items1.21.2 – 26.3

Similar mods

[ETF] Entity Texture Features1.16.5 – 26.3Not Enough Animations1.16.5 – 26.3Continuity1.17.1 – 26.3LambDynamicLights - Dynamic Lights1.16.2 – 26.3Presence Footsteps1.7.10 – 26.3AmbientSounds1.12.2 – 26.3

What the author says

A simple visual mod that spices up your game with custom colorful block highlights/outlines!
wildbeast42, on the Modrinth page

Official listing

Owner
wildbeast42
Published
2025-08-22
Updated on Modrinth
2026-10-13
Facts verified
2026-10-15

Tags

DecorationGame mechanicsUtility
Open on ModrinthCompare