Blonde (or blond for men ) hair ranges from nearly white (platinum blonde, tow-haired) to a dark golden blonde. Strawberry blonde, a mixture of blonde and red hair, is a much rarer type containing the most pheomelanin. 
Blonde hair can have almost any proportion of pheomelanin and eumelanin, but has only small amounts of both. More pheomelanin creates a more golden or strawberry blonde color, and more eumelanin creates an ash or sandy blonde color. Many children born with blonde hair develop darker hair as they age, with the majority of natural blondes developing a hair color of a dark blonde hue by the time they reach middle age. Pregnancy hormones hasten this process. Natural light blonde hair is rare in adulthood, with claims of the world’s population ranging from 2% naturally blonde [self-published source] to 16% in the US. Blonde hair is most commonly found in Northern and Western Europeans and their descendants but can be found spread around most of Europe. Studies in 2012 showed that naturally blonde hair of Melanesians is caused by a recessive mutation in tyrosinase-related protein 1 (TYRP1). In the Solomon Islands, 26% of the population carry the gene; however, it is absent outside of Oceania.
As with previous installments, both games follow the journey of a young Pokémon trainer and friends, as they train Pokémon. This time, the games take place in the Kalos region—based on France—with the objective being to thwart the schemes of the nefarious criminal organization Team Flare, all while attempting to challenge the Pokémon League Champion. X and Y introduced 72 new Pokémon species, and includes new features such as the new Fairy-type, character customization, updated battle and training mechanics, and completely rendered polygonal 3D graphics as opposed to the sprites used in previous generations. A new form of Pokémon evolution, known as “Mega Evolution,” allows players to further evolve many species of fully evolved Pokémon, with 30 of these evolutions available in these games. Both titles are independent of each other, but feature largely the same plot, and while each can be played separately, trading Pokémon between the two games is, as with past titles, necessary in order for a player to obtain every Pokémon species.
Similar to previous installments of the series, the two games follow the journey of a young Pokémon trainer through the region of Unova, as they train Pokémon used to compete against other trainers, while thwarting the schemes of the criminal organization Team Plasma. Black and White introduced 156 new Pokémon to the franchise, 5 more than the previous record holder Pokémon Red and Blue, as well as many new features, including a seasonal cycle, rotation battles, fully animated Pokémon sprites and triple battles. Both titles are independent of each other, but feature largely the same plot, and while both can be played separately, trading Pokémon between both of the games is necessary in order to complete the games’ Pokédex.