[%- IF is_image -%]
[%- ELSIF is_binary -%]
This is a binary file which won't render natively on the web, but you can get it here all the same:
[% filename %]
[%- ELSE -%]
[%- INCLUDE inc/syntax_highlight_css.tt2 -%]
[% IF mangled; blob; ELSE; blob | html; END; %]
[%- END -%]