The text formats with 

This: 

Yo.

Are gonna be colored with the member's colors. 

Mina

Tzuyu

Chaeyoung

Jihyo

Jeongyeon

Sana

Momo

Dahyun

Nayeon

And when they're thinking the same thing, it would be like this:

When will we tell each other?

Hope it wouldn't be a hassle, but I'll remind you guys in the upcoming chapters about this  :--))