; Append to your own app.ini

[markup.sanitizer.chroma]
ELEMENT = pre
ALLOW_ATTR = class
REGEXP = ^chroma$

[markup.asciidoc]
ENABLED = true
FILE_EXTENSIONS = .adoc,.asciidoc
RENDER_COMMAND = "asciidoctor -r /opt/extended_rouge -s -a showtitle -a source-highlighter=rouge --out-file=- -"
IS_INPUT_FILE = false