The package can generate thumb indexes for your document. It
features printing thumb indexes on one- or two-sided pages,
along with background- and foreground-color selection and full
LaTeX styling of the chapter numbers in the thumb indexes. The
height of each thumb index is automatically chosen based on the
number of chapters in your document, while the width is chosen
by the user. The package is designed to work with the memoir
class, and also requires PerlTeX and tikz/