Colonel Bogey March (listen 0:00-1:54)
what do I write???

is a British march that was composed in 1914 by Lieutenant F. J. Ricketts (1881–1945) (pen name Kenneth J. Alford), a British Army bandmaster who later became the director of music for the Royal Marines at Plymouth.

Explanation:

i think this might help

a dark purple with a little bright violet red

i think the answer could be either a or b because both are part of the post production part. hopefully this you a little.