Hi Kostya,
Afraid I'm also having great difficulty with this from an accessibility point of view.
I have only just updated to Android 6.0.1, and been surprised that I have suddenly lost the ability in Aquamail to have the toolbar at the bottom of the screen.
I have one arm, and am obviously using the mobile one handed. This is not good news for me...
Thanks for your tips above in the FAQ - sadly there are a couple of omissions in what is covered.
The big one is that when composing or replying to an email, there is now no button at the base of the screen to send the email. This now involves stretching a thumb to the top of the screen.
I use the "Move to folder" function a lot. Selecting a folder that is not in the recent folder list involves scrolling down and clicking "Other folders" at the bottom of the list (all good), but then to filter the list (I have hundreds of folders in my inbox), the search button is right at the top. Guessing this could not be next to cancel & OK...?
Coming from a BB before using Aquamail on Android, the "file" function on the BB used to suggest folders to file in based on email title, addresses and previously filed to folders - this would be an amazing thing to add to the wish list - but I have read how long this is for you!
I have made the recent folder list longer in the settings, which does help.
I am really surprised that an absolutely excellent app is being slightly compromised (for some) by settings/ design forced by Android/ Google.
Off topic, but I loved the old dark blue colour settings from the previous designs of Aquamail (I use the dark theme).
Would you be able to suggest an exact hex value for one of the old dark blue colous that I could use for "Title bar and colour"?
Thank you again for your hard work and dedication to your users and developing this app.
Ben