Custom styling without Valo

I had an old application written in vaadin 6.8.9 which had some
custom styling in there.

Upgraded all to 7.4 without any styling yet and all widgets looked when running
the application like old 6.8.9 widgets. When I used eclipse to generate new theme
for the new 7.4 app - it defaults to valo theme which look completely different.

I can't change the look and feel just like that due to customers currently using the app.
How can I use my custom styling without using valo theme ?

Thanks,
Adrian

Ok - found it in the book:

7.5.2. Plain Old CSS Themes

but I had to change from:

@import "../reindeer/legacy-styles.css";

to:

@import "../reindeer/legacy-styles.scss";

to make it working.

Cheers,
Adrian