Is every Rakshasa black or dark skinned? Amar Chitra Katha

Is every Rakshasa black or dark skinned? Amar Chitra Katha the treasure if Indian mythology that so easily parents of today can use as are placement to the fact that they don't want their parents or in laws to stay with them portrays most villains as dark skinned and most Heros as white skinned. Is this a just a over sight ? Designers repeating dogma they were fed? Is it planned propaganda? Don't know what the source of it is. It's just that it looks more like a market creation for fair and lovely.