Main.css file size increase in 2.0.0 final

We just updated to 2.0.0 final from rc4 with minimal headaches which was great but when doing production builds for the browser we’re seeing an increase in the main.css file size from 2.36MB to 4.03MB.

We’re using ionic-app-scripts build --prod

Thanks in advance for any input

Edit: Obviously we gzip on the server but main.css is still a 100KB increase in 2.0.0 final from rc4