The main purpose is fresh and bright.

主旨鲜明。

《新英汉大辞典》

The sky is so pure and fresh and bright and clean;

天空是那样的清新明净；

youdao

Wevin made LOGO design especially smart cute, fresh and bright colors, giving a pleasant feeling, very consistent product positioning.

先知为奇异果设计的LOGO特别的灵巧可爱，色彩明丽清新，给人一种赏心悦目的感觉，非常符合产品的定位。

youdao

He's as good as anyone at coming on and making a a difference, and he was bright and fresh before the injury.

BBC: Stoke face wait on Ricardo Fuller's shoulder injury

But old as they are, these beers taste mind-blowingly fresh, bright and vibrant.

WSJ: The Sour and the Glory of Beer

Boston, you see fresh-faced, bright, and ambitious coeds.

FORBES: The Crotty College Report: A Weekend in Boston, Massachusetts, College Town USA.