Can I delete PackageCache in the project Library?

Graphics Shaders & Materials
1

In there are hundred of icons, all showing up in my texture window, whats makes it annoying to choose textures. Can I simply delete the cache?

Example in this Answers-Question: https://answers.unity.com/questions/1938539/unity-shows-all-icons.html

2

The Library is automatically generated. If you delete stuff from it, Unity should notice and regenerate the files.

You may be able to embed the package – basically just copy the package folder into your project, then remove the copy provided by the package manager. You would then be able to modify it as you desire – of course, it might still break if you delete all of its assets…

3

Thanks; all I want is not to have all these icons polluting my texture collection. I dont have that on projects created last year.