The Theme Builder section of the website does not produce a CSS file that contains the styles for the new Skeleton component.

I am using the Sass ThemeBuilder to regenerate stylesheets with the themes that we use on our site in order to get the latest version of the styles. One of those styles includes the color Blue Gray. I am able to select and download all other styles and colors except for when I select Blue Gray. When I select the color and click download I receive the a `500 - Internal Server Error`.

When you start theming using the Bootstrap as a base, change the pallet colours and click download the ThemeBuilder throws.