> For the complete documentation index, see [llms.txt](https://ebal-studios.gitbook.io/usc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ebal-studios.gitbook.io/usc/bonus-files-pack/why-a-separate-pack.md).

# Why a Separate Pack?

After you have purchased the [Ultimate Spaceships Creator](https://assetstore.unity.com/packages/3d/vehicles/space/196802), you will get free access to its accompanying [Bonus Files Pack](http://u3d.as/2Abs). The bonus files are only needed if you wish to use the old standard materials instead of the default "Colorize" materials. The default "Colorize" materials are all in 4K already and have everything you need to easily customize your colors in the inspector. This pack is provided for those who for whatever reason wish to use the old standard materials or want to manually customize these standard textures.

The Bonus Files Pack contain three types of files:

* Additional standard textures.
* PSD files and the texture masks that were used to create those PSD files.

These files have been separated from the Ultimate Spaceships Creator (USC) to save size, make it easier and faster to import the USC, improve overall performance and avoid clutter. Most users will not need these additional files so it would be counterproductive to overload the USC package.

To use these textures. It's better if you start a new project and import them there then manually copy and paste whatever texture you would like to replace.