> For the complete documentation index, see [llms.txt](https://nfl.gitbook.io/nfty-pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nfl.gitbook.io/nfty-pro/step-by-step-guide/sets.md).

# Sets

After creating project you will land on the app generator where the system will provide a default set. 

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A set is a collection of one or more trait folders and each trait folder contains multiple attributes, which helps distinguish the traits further.

Note: (Only png file formats are supported by the tool)

A set allows you to define and pair the desired attributes of your NFT collection based on their attributes.&#x20;

Attributes such as:

**Set Title/Name/Label**: A private name for internal use that helps you refer to the pair of certain attributes.

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<figure><img src="https://1894532505-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKfk420Eb8wHcx6ItRncT%2Fuploads%2FGN3DOBFBV40o2xVqMAso%2Fimage.png?alt=media&amp;token=e5e0a5d2-adba-4661-b3e5-46cf9dab2021" alt=""><figcaption></figcaption></figure>

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<figure><img src="https://1894532505-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKfk420Eb8wHcx6ItRncT%2Fuploads%2F64exo6VhUnoeL7g0Ybux%2Fimage.png?alt=media&amp;token=caab25cf-b354-40ef-8f5f-46c50efd625b" alt=""><figcaption></figcaption></figure>