The Pane module was introduced with version 4.1.0 of the theme. They can be configured using the file
pane-options.php or using their own tab in Easy Theme Options.
A screen shot isn't available but the options are straight forward. For each of the three panes currently allowed by the theme you can specify the background colour of the pane header and outline, and the title which will be used if a widget hasn't already set one.