I don't know where in the account setup process @Irishserf may have encountered it, but in my attempt to remember what it was (I had totally forgotten about it), I found it by clicking my avatar in the top right, then 'settings,' and it's right at the top of the Visual Preferences page.
Edit: Sorry, I thought your question was directed to anyone. Should have read it again before responding.
I don't know where in the account setup process @Irishserf may have encountered it, but in my attempt to remember what it was (I had totally forgotten about it), I found it by clicking my avatar in the top right, then 'settings,' and it's right at the top of the Visual Preferences page.
Edit: Sorry, I thought your question was directed to anyone. Should have read it again before responding.
No worries, glad you knew.