Meh, I'm sticking to the classic.

but how

My FA -> Account Management -> Account Settings -> Site Layout/Theme -> Change Template from "Modern" to "Classic" -> Verify Password to change settings

but i can't the first step My FA or account management

It's next to your username.

i mean i can't find the First Step

For mobile: that three orange lines on the top left corner -> settings -> account settings -> scroll down to "Account Personalization" -> on "Site Layout/Theme" -> Change Template from "Modern" to "Classic" -> Save changes by verifying your password

For Web Browser: highlight "settings" on the top right corner -> account settings -> scroll down to "Account Personalization" -> on "Site Layout/Theme" -> Change Template from "Modern" to "Classic" -> Save changes by verifying your password

hello