It depends on the specific context and the author's intentions. Sometimes, it might be considered canon, but without more details, it's hard to say for sure.
The clash of two very different universes makes 'naruto kars fanfiction' interesting. Naruto's world is full of ninjas, chakra, and complex village politics. Kars, on the other hand, comes from a world with his own set of powers and rules. When combined, it creates a unique and unpredictable story.
Well, one popular 'naruto kars fanfiction' might be the one where Kars is transported into the Naruto world and has to adapt to the chakra system. It's an interesting take on how his unique abilities from his own world would interact with Naruto's universe.
The JoJo manga is mainly in black and white. Colored versions exist but are not the norm. Sometimes, colored illustrations are done for promotional purposes or by fans.
I think it's great. The characters are memorable, the plot is full of twists and turns, and the battles are epic. It's a manga that stands out from the crowd.