The reason we are having less colors is likely because of the design aesthetic that is being used. Depending on the theme or design style, fewer colors may be used to create a more unified, cohesive look. Additionally, using fewer colors can make a design easier to read and navigate, as too many colors can be distracting or overwhelming. It's also possible that fewer colors are being used to create a certain mood or atmosphere. For example, a muted color palette may be used to create a more calming or peaceful atmosphere.