/usr/share/source-highlight/default.lang is in libsource-highlight-common 3.1.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | # this is the language definition file to which source-highlight
# reverts (when in failsafe mode) if not language definition is
# found for the current input file.
# Thus, basically, no highlight is performed (unless you customize
# this file).
# However, your input file will be formatted in the output format.
|