* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * hf-tikz --- A simple way to highlight formulas and formula parts. * * E-mail: claudio dot fiandrino at gmail dot com * * Released under the LaTeX Project Public License v1.3c or later * * See http://www.latex-project.org/lppl.txt * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * The package provides a way to highlight formulas and formula parts in both documents and presentations thanks to TikZ.