I'll give you a breakdown. It's hard to illustrate my point with the lack of evidence and screen time, but I'll try my best to make sense of the idea.
From what we know, it was said this about the 'tattoo'
So this got me thinking. Basically we all know the definition of a crest, or for a more literal definition 'coat of arm'
'the distinctive heraldic bearings or shield of a person, family, corporation, or country.'
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What if there are faction groups pertaining to the crests/tattoos? Instead of being random powers like Hagoromo's to our MC's, what if these are artificially created for the 'new world?' These crests are split between two different subgroups.
Red (Kawaki)
Blue (Boruto)
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Color of
red is associated with energy, war, danger, strength, power, determination as well as passion, desire, and love.
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While the color of
blue is associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven.
On one side Kawaki is trying to destroy the stability of the Ninja World
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,
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So in the larger term, I kept thinking. I understand why they were both given these colors based on the meanings behind them, but what about the label? So in my theory I believe that there are larger forces at work besides Bolt and Kawaki. There might be factions who side with Kawaki, and those who want to stop them from destroying everything (Boruto's side).