#shouldercanon

Taking it a step further, black representing noble Kanohi feels weird when masks can already be black on a Matoran. While we know Toa can have pearl/metallic colours on them, I also theorize that this is mostly honorific armour rather than a base state, in most cases. Therefore, I suggest Pearl Dark Gray (gunmetal) to denote Noble Kanohi, and the blend of black was a hint that it was Teridax in disguise.

Therefore, I propose that, somewhere out there in the Matoran Universe, there's a temperate island where the Po-Matoran population have sand-blue, sand-purple and sand-red in their armour.

Psionics - Natural crystalline spires.

The strongest psychic force in the GSR was Tren Krom, an eldritch being with red skin. Based on what we learn of Spherus Magna, it was likely modeled after Anonna, a natural eldritch psychic that lead to the Great Beings rising in power. Unless the Great Beings wore blue and gold when they overcame Anonna, and thus saw that palette as even more dominant of a psychic representation, then it stands to reason they'd associate red with powerful psychic minds

- these 'bubbles' represent the Matoran perspective of the flow of time - instead of viewing it as a steady river with diverging paths, they imagine 'bubbles' representing people, each bumping into eachother and creating events

After that it's easier - dancing music theatre nerds wither under his stare. The string quartet from the southern islands follow him willingly. He finds a sonic, fire, and plasma matoran creating explosives together, and the sonic usually recovers quickest because of his protected eardrums. The village of percussionists draws Krakua in because of their intricate layered rhythms, and Pohatu comes looking after a month because, ironically, Krakua loses track of time.

Vakama used his mask making skills to purposefully install the extra large eyebrows on his mask, much like he added telescopic lenses or other add ons to other masks, so that as a Turaga he could very clearly express his stern disappointment at Takua troublesome Matoran in Ta-Koro

I was watching lomn and remembered that the agori have three fingers and a thumb while the bio-mechs have four fingers and a thumb. Just writing it down so I can stop thinking about it.