Content Width Narrower with version 2.1.0

I recently updated my blog site to version 2.1.0 of the Penny WordPress theme and the website pages were much narrower than with version 1.0.0 so I ended up restoring the theme to the older version. Is there an option to make the new version display web pages with the same width that version 1.0.0 used? Based on the readme on GitHub, I noticed that “Reduce content width for readability.” was one of the changes in version 2.0.0, but it would be nice to have an option to maintain the previous width since having a wider than usual width was one of the reasons I chose to use this theme.