The latest mail update is a step in the wrong direction, form over substance
The new settings button opens a huge section dealing with themes.
ICYMI, email isn't about colors, it's about productivity. Now, to change an actual setting, I need to click one more button for 'more settings'.
A step in the wrong direction.
ALSO,
the one setting that would actually help me is still broken:
in view mode, with preview pane set on the right, and messages sorted newest first, after moving a message to a folder the view always goes to the previous message, regardless of the setting of 'previous' vs 'next'.

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Yoram Arnon commented
at least now the 'settings' button is actually a button, that I need to click, and doesn't open the settings dialog when I just hover over it. That was a pain.
So thank you Y!mail team for that!