In this video, we will install the modules required in order to apply a theme to our newsletters.If we look at the HTML Mail project page, you can see that there are a few additional recommended modules. I'm going to use all of these except for Mail MIME. (I had an incredibly difficult time trying to get this to work, and after two solid days of trial and error (mostly error) I gave up. Since this is not required, I decided to release the series without it, and add it later, when I have more time to devote to getting it figured out.)