`matrix.skeleton` is a `PGF/TikZ` library that simplifies working with multiple matrix nodes.
To do so, `matrix.skeleton` correctly aligns groups of nodes with the content of the whole matrix.
Furthermore, `matrix.skeleton` provides rows and columns for easy styling.

For example, the following picture is easily typeset:

![Example](example.pdf)

with this simple code:

```TeX
\documentclass[tikz]{standalone}

\usetikzlibrary{matrix.skeleton}

\begin{document}
  \begin{tikzpicture}
    \matrix (m) [matrix of math nodes,
                 style odd rows on layer={background}{fill=black!25}] {
      1  & \frac{\frac{16}{2}}{4}  & 3  \\
      4.0000001  & 5  & 6  \\
      7  & 8  & 9  \\
      10 & 11 & 12 \\
      13 & 14 & 15 \\
    };
    \fitandstyle{(m-cell-1-1) (m-cell-2-2)}{draw=red, fill=red!25, opacity=0.5}
  \end{tikzpicture}
\end{document}
```

More information and examples are available in [the manual](manual.pdf).

Author: Nicolas Dudebout
License: ISC
Version: 1.1