It is art and design. What she is describing is basically super simplified state of art related to colors in out culture and pretty stable. It is simplified for non-designers, but pretty much similar to what they teach when they teach you classical drawing.
Fashion is significantly more limited and changes more often. Not that these basics can not change, but fashion refers to something still less stable.
Fashion is significantly more limited and changes more often. Not that these basics can not change, but fashion refers to something still less stable.