Colors dosen´t work (or I don´t know how to fix it)

Hi

I´ve just had my premium pack and Im trying to change each color of main menu.

I have all option to change it but when I try to change the color of the main menu, for example, text hover into a red, it dosen´t change anything, I move the mouse over the text...and nothing

I saw some vidos of the same action where people change it, it works for them but not for me...

could you help me?

thanks!