A user will know where each icons is after using MailWasher just once.
What does change, each and every time a user runs MailWasher -- and what
always remains the focus of the users' attention -- are the e-mail contents that
the user opens MailWasher to see, on-screen.
Please give users the opportunity to devote their screen resources to the e-mail --
to the subject matter -- rather than to the icons. Or instead offer users the option
of 'large' or 'small' icons, and even 'no' icons (text only).
(And thank you for allowing users to suggest features. *This* is a great feature)