tcolorbox provides an environment for colored and framed text boxes with a heading
line. Optionally, such a box can be split in an upper and a lower part. The package
tcolorbox can be used for the setting of LaTeX examples where one part of the box
displays the source code and the other part shows the output. Another common use
case is the setting of theorems. The package supports saving and reuse of source code
and text parts.
Note: TrackChanges is not part of TeX Live, and hasn't been updated in a while. Instead, changes.sty, a package for the same purpose, is available in TeX Live and more recent. You can find the example template here.
TrackChanges is a package for collaboratively editing LaTeX documents which allows multiple editors to make changes & add annotations to a document.
Here we present a short example of it's use, which you can use as a template to get started.
This example shows how to write simplified Chinese characters in LaTeX with the CJKutf8 package. WriteLaTeX includes a full set of fonts for simplified Chinese, and we use utf-8 encoding, so you can type simplified Chinese characters directly into your LaTeX source code and have them appear in the output.