Lumen Theme
Theme Press's default theme, included in Brikit's suite of prebuilt themes.
The Lumen Theme was included with Theme Press and set as the site default theme upon installation, through version 2.3.4. Built-in themes from 3.0 onward, include Vanilla and Splash.
Changes could not be made directly to the Lumen theme. Instead, users could make a copy first, then create a new theme.