BlackBerry 10 OS version 10.2 update has a new feature that allows to assign a different color to each email account in the mail app, be it Gmail, Hotmail, Yahoo etc. This makes it really easy to identify which email account received a message when looking at your BlackBerry Hub. To get started just follow the steps below and assign a color code.
1. In the BlackBerry Hub, tap followed by Settings
2. Select Email Accounts and tap on an email account
3. In the Account Color drop-drown list, tap a color
4. Repeat these steps on subsequent email accounts