This extension offers syntax highlighting for the following text formats:

.json (also offer syntax validation)
.bat
.cmd
.ini
.txt
.log

See Video. See Blogpost.

The extension comes with default colors set for black and white background.
If you want to customize the colors goto to the folder:

C:\Users\[USER-NAME]\AppData\Local\Microsoft\VisualStudio\10.0\Extensions\Frederic Torres\TextHighlighterExtension\2.0

Open the file Colors.htm in Internet Explorer to visualizethe color names available.

Update the file COLORS_DEFINITION.js to change the colors.

To reset the color delete the file Config.json