# Material Tag

> A formal definition of the tag for a file that defines how a surface reflects light and which textures it uses, filed in a materials folder.

Record: `lexicon:material-tag`
Kind: artifact
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-material-tag

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Shader Tag](https://banes-lab.com/records/lexicon/shader-tag.md) and before [Sprite Tag](https://banes-lab.com/records/lexicon/sprite-tag.md).

## Category

- [Product Concerns](https://banes-lab.com/records/lexicon-category/product-concerns.md)