Allow user to customize styleguide theme CSS

[melaniestiller]

Hi!
I saw the pull request for allowing customizing the styleguide with copying the assets/views-folder: #5
That is a great idea! But actually I don't want to change the .pug-files - in my case changing some values (e.g. font-colors) in the scss-Files might be enough.
Is there any (easy) possibility to do so? I tried different things, but it didn't work.
Melanie

[pieplu]

You can add a stylesheet file on your nucleus config to overwrite the nucleus styles