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