Bubble Letter and Color, Account List

[nhlevin]

OK, this is a truly low priority question so sorry to bother...

Tap "Inbox/<Account Name>" at top of message list. 
Account drawer appears. 
All five bubbles for each of my email accounts is present.
However, 4 of the 5 have the assigned color and first letter for their respective email accounts.  One, a gmail account, does not, and the icon is a generic shadow of head and shoulders.
Tap Accounts at the top and from the account list, long hold the gmail account.
Select Options and Folders
Select Account Options
Assigned color is selected, though bubble is not that color.

Solution?

[Kostya Vasilyev]

For OAUTH2 enabled accounts -- at least for Gmail, Hotmail, Yandex -- the app is able to pick up your "profile image" from Gmail, Hotmai, Yandex respectively.

This image may be blank -- we (usually) have no way to know if it is. Each of the above services has a "placeholder" that they return if there is no assigned image.

Aqua refreshes the image once a day, or you can force it by long pressing on the account -> account setup -> Next -> Save. This will reset the stored image and the app will refresh it again on next mail check.

https://support.google.com/mail/answer/35529

[nhlevin]

I don't have a profile photo for my gmail account.  Hence, Google defaults it to the first letter of my name, N.  Attached is what appears in the account list after updating per your suggestion above.

[nhlevin]

...and just to clarify, the gmai account is the icon on the lower right with the silhouette image.

[Kostya Vasilyev]

That blue "head and shoulders" over a pale blue background -- is exactly what Google's "placeholder image" looks like.