Description
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Changelog
Versions

Powerful mod to make the block outline look interesting for once.
Features include:
- Rainbow coloring (and gradients)
- Selective rendering of sides based on conditions (air exposed sides only, for example)
- Animations (scaling, movement, and fading)
- Support for connected blocks
- Scale adjustment
- Drawing above other terrain (yes. means you can see it through walls)
- Utilities for CPVP players
- Copying and loading configurations from files, alongside presets
- Cutting away lines at corners or centers
- Entity hitbox, fluid source block support, and block model support
- Line layers
- Better performance than vanilla!
All Versions
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[2.93+26.3] Custom Block Highlight (Outline / Overlay) 2.93+26.3
by Tektonikal on Oct 20, 2026
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- OneConfig support! Now adds a slightly nicer layout for users
- Native mod toggle support for OneConfig
- Options now correctly grey out
- Remove line thickness multipliers where not needed
- Improved loading configs / presets
- Animate Line Thickness now works with all shape styles
- Face modes now line up with rotations
- Face modes now take into account the full model shape if using connected blocks
- Air Exposed face mode ignores water
- Waterlogged blocks are no longer treated as water
- Model Shape style improvements
- Looking at an entity while entities are disabled no longer resets the block outline's position
- Edges no longer animate when Easing is turned off
- Fixed rendering bugs
- Performance improvements
- Fixed UI visual issues
- Added translations for Czech and Spanish (Thanks Augustine and KwaggNSR!)
[2.92+1.8.9] Custom Block Highlight (Outline / Overlay) 2.92+1.8.9
by Tektonikal on Oct 02, 2026
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Initial release for 1.8.9, may not be perfect!
[2.92+1.21.1] Custom Block Highlight (Outline / Overlay) 2.92+1.21.1
by Tektonikal on Oct 02, 2026
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BIG performance improvements and minor fixes
[2.91+1.21.1] Custom Block Highlight (Outline / Overlay) 2.91+1.21.1
by Tektonikal on Sep 29, 2026
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Rendering performance improvements and fixes for invisible entities.
[2.9+26.3] Custom Block Highlight (Outline / Overlay) 2.9+26.3
by Tektonikal on Sep 27, 2026
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last fix, hopefully
[2.9-rc-1+26.3] Custom Block Highlight (Outline / Overlay) 2.9-rc-1+26.3
by Tektonikal on Sep 25, 2026
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fixes a bug from porting to 26.3
[2.9-rc-1+1.21.1] Custom Block Highlight 2.9-rc-1+1.21.1
by Tektonikal on Sep 14, 2026
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Here be dragons! CBH on older versions does not support variable line width, and will have issues with previewing!
[2.9-rc-1+26.2] Custom Block Highlight 2.9-rc-1+26.2
by Tektonikal on Sep 13, 2026
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Changelog:
- There is now a preview in the presets and config screen!
- Performance improvements for line layers with identical depth tests
- Cleanups leading to better stability and bug fixes
- Options no longer reset to default when disabled by other options
- Line layers are now fully independent of each other
- Line layers and fill now have separate rainbow settings
- Global mod toggle + vanilla outline toggle
- Line layers now have an adjustable line thickness multiplier on each end of a cut.
- Scaling is now split into percentage-based and block-based scale factors.
- Block-based scaling now snaps to the nearest 1/16th of a block.
- Optional, improved easing option for smoother animations
- Line thickness animations
- Render conditions that allow you to stop rendering when in F1 or adv/spec mode
- More granular control over fluid selection
- (Beta) Block model based outline rendering, no need for Seamless now!
- (Beta) Rotations for your block outline to look extra fancy!
[2.8.1+1.21.11] Custom Block Highlight 2.8.1 For Fabric 1.21.11
by Tektonikal on Jul 22, 2026
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NOBODY TOLD ME IT WAS BROKEN !!!
[2.8+26.2] Custom Block Highlight V2.8 for Fabric 26.2
by Tektonikal on Jul 14, 2026
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- Performance improvements and bug fixes
- Configuration screen improvements
- entity support
- fluid support
- scaling animations
- outline layers
- presets
- indivdual fades
- crystal helper improvements
- cutting away lines
[2.7] Custom Block Highlight 2.7
by Tektonikal on Apr 13, 2026
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this sucks. i hate it
[2.7] Custom Block Highlight 2.7
by Tektonikal on Apr 13, 2026
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no 1.21.9 version. they removed world render events. maybe another day
[2.7] Custom Block Highlight 2.7
by Tektonikal on Apr 13, 2026
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Initially released as a beta due to lack of testing. Seems to run perfectly.
[2.7] Custom Block Highlight 2.7
by Tektonikal on Apr 12, 2026
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Returning to this mod, more big things are on the way.
This update contains:
This update contains:
- Stability improvments
- YACL update
- New icon
- More options and versatility for them
- Nicer formatting of the menu
- All options are instant now
- Support for loading and copying configurations
[2.6] Custom Block Highlight 2.6
by Tektonikal on Jul 07, 2025
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fixed some stuff for real now
[2.5] Custom Block Highlight 2.5
by Tektonikal on Nov 01, 2024
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- Port to 1.21.3
[2.5] Custom Block Highlight 2.5
by Tektonikal on Nov 01, 2024
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- Port to 1.21.2
- Fixed animation inaccuracy at high coordinates
[2.5] Custom Block Highlight 2.5
by Tektonikal on Aug 24, 2024
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1.21.1
[2.5] Custom Block Highlight 2.5
by Tektonikal on Jul 20, 2024
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V2.5 release
- added fades, gradients, etc
- reupload because of small error
[2.2] Custom Block Highlight 2.2 for 1.19.4
by Tektonikal on Apr 13, 2024
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Fix some bugs with stuff that mess with camera rotations, added chroma, and crystal helper
[2.0] Custom Block Highlight 2.0 for 1.20.2
by Tektonikal on Mar 14, 2024
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fix'd!
[2.0] Custom Block Highlight 2.0 for 1.20.1
by Tektonikal on Mar 14, 2024
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something was wrong with 20.1 and 20.2 so i'm reuploading them
[2.0] Custom Block Highlight 2.0 for 1.19.4
by Tektonikal on Mar 13, 2024
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update !!
[1.0] Custom Block Highlight for 1.19.4
by Tektonikal on Dec 04, 2023
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Initial release, surely i didn't mess anything up
[1.0] Custom Block Highlight for 1.20
by Tektonikal on Dec 04, 2023
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Initial release, surely i didn't mess anything up
[1.0] Custom Block Highlight for 1.20.2
by Tektonikal on Dec 04, 2023
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Initial release, surely i didn't mess anything up
[1.0] Custom Block Highlight for 1.20.1
by Tektonikal on Dec 04, 2023
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Initial release, hopefully i didn't mess anything up