This mod is no longer actively being developed because it has been superseded by Edibles. It is fully configurable, has more features and includes the functionality of this mod.

A minimalistic mod which allows players to eat glowstone dust, which causes entities around to glow with an outline.

Configurable
entityGlowDurationSeconds (default = 20, min 1, max 3600): The duration in seconds of how long entities around should be glowing with an outline.
entitiesAroundAffectedRadiusBlocks (default = 32, min 1, max 128): The radius in blocks around the player of entities affected.

The effect:

effect

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You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge ecosystem.

Serilum.com contains an overview and more information on all mods available.

Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!

Edible Glowstone (Forge)