When someone stylizes something, they make it look a certain way that is different from how it really is.
Stylizing something can be a way to make it more interesting or beautiful.
Examples:
She stylizes her drawings with lots of colors.
He stylizes his hair with gel.
The artist stylizes the trees to look like they are dancing.
The chef stylizes the food to look like a smiley face.
The movie stylizes the city to look like a magical place.
The designer stylizes the clothes to look like they are from the future.