Here's another puzzle of this type. Perhaps my next one will be complex enough to require the full $72$ x $72$ size.
Final answer: (5,2,5)
Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It only takes a minute to sign up.Sign up to join this community
The symbols look like
morse code - .. ... .- .-. . -.. .... . .-. .-. .. -. --.
but decoded it spells
TIS A RED HERRING
but it's a clue to the steganography:
If blue is long and yellow is short and a notch is a pause
-- --- .-. ... . .. -. -.-. --- .-.. --- .-.
which translates to
MORSE IN COLOR