iThemes has a sneak preview up of a new Builder theme settings screen, one that adopts the WordPress menu UI from the
Appearance→Themes screen, and groups Builder options into logical groups.
Chris Jean, iThemes developer, discusses the thinking behind the theme updates in the blog post:
A couple of months ago, the iThemes team talked about the future of Builder and set some short-term and long-term goals. One of the long-term goals was to make a big push for making Builder easier to use. A big part of this drive towards making Builder easier to use is to rebuild each of the settings and editor screens, to offer a section with easy-to-use basic options that most users need and and a section with more advanced options.
For more on these upcoming features and a full screenshot of the new settings screen, see the iThemes blog post.