These textures seems to take 3mb in my project, could anyone guide how to remove them.I have tried to give them all a same small size texture but that isnt working ?
If you import URP as a package (as in: it is not inside of your assets folder), it is not possible to remove them from the project. I don’t know it the build includes them because unity references them in some way which you can not work around otherwise but if you really need to do this I would say look at importing URP into your assets folder. There you sucessfully delete them but beware it might break stuff (if so consider replacing them with smaller version, small white textures)