Separate Themes in Zoho Mail for each POP3 Account

Separate Themes in Zoho Mail for each POP3 Account

I have 4 different POP3 Email Accounts which I access in Zoho Mail.  I came across the themes option in Settings and thought it would be great if I had a different colour theme for each email account.  Problem is whenever you go into one account and change the theme that change and that new theme applies to ALL your email account.  Can each POP3 email account not have an independent theme ?