gnus-message-citation-keywords

gnus-message-citation-keywords is a variable defined in `gnus-cite.el'.
Its value is shown below.

Documentation:
Keywords for highlighting different levels of message citations.

Value:

((gnus-message-search-citation-line
  (1 'gnus-cite-1 prepend t)
  (2 'gnus-cite-2 prepend t)
  (3 'gnus-cite-3 prepend t)
  (4 'gnus-cite-4 prepend t)
  (5 'gnus-cite-5 prepend t)
  (6 'gnus-cite-6 prepend t)
  (7 'gnus-cite-7 prepend t)
  (8 'gnus-cite-8 prepend t)
  (9 'gnus-cite-9 prepend t)
  (10 'gnus-cite-10 prepend t)
  (11 'gnus-cite-11 prepend t)))