Using SASS

I am having problems using Gulp and serving SASS in my app.

I think I just want to manually mange the SASS anyway and want to use Koala to compile.

If I edit ionic.app.scss in the SCSS folder where do I output the CSS to it?

Is it the ionic.css or should I use the www/css/style.css

The scss/ionic.app.scss will be processed and placed in www/css/ionic.app.css.
From there on it will be processed to ionic.app.min.css in the same folder.

When using Sass in ionic you don’t use style.css anymore.