#### 7.12.2 Coloring Input Files

Using `-T csh` produces a colorized version of the input file text. Specifically, the output is a text file according to the signalling chart language (irrespective what the input language was). The output contains a single colon-label divider using the formatting escapes described in Text Formatting. Running msc-gen on the resulting text output again (interpreting it as a signalling chart), will produce a colorized version of the original input text as graphical output. This is how the color text version of the examples in this document were produced.