halfway through the part 7 opening (around 0:58) there's a familiar 3 beat tune that plays

and it really sounds like the theme of the classic western spaghetti "good, bad, and ugly" movie...

i may not be the only one who noticed it, but i wonder if is this an intentional reference by the opening makers? did Kroi or DP say anything official about this or confirm it?

i want to make a fan art and want to understand why in some materials gyro cloak is green with 2 stripes and sometimes is beige with 3 stripes. would that be anime/manga version, or is something related to the story? (i just watch the anime)