Dear @Andres_Beck-Ruiz,
Welcome to the Coda Maker community 
Personally I do not recommend to use the âHidden formulasâ, several can be found in the post below:
In the screenshot below you can see some of the basic syntax to achieve formatting with the support of a formula. Just be aware that this can break your doc anytime, just to be OK with that.
There are so many more options to play around with and to stay at the safe side, enjoy Coda