Agreed about the flat buttons sadly following the OS-cohesiveness-hindering flatness fad instead of adhering to standard OS styling which can be recognized acro

Agreed about the flat buttons sadly following the OS-cohesiveness-hindering flatness fad instead of adhering to standard OS styling which can be recognized across apps by users. Disagreed about the To/Cc redesign, the new design is much more efficient when you have multiple recipients, making good use of horizontal space. The old design did lead to: 1. Tons of wasted horizontal space (as each line is a recipient, on each line you only use the few characters describing each recipient, leaving space on the right blank). And also, one-line-per-recipient leads to tedious vertical scrolling inside a vertically-constrained space (3 lines by default, and you don't want more, you want to preserve vertical space for the email body, not the header). 2. Impossibility to easily copy/paste all recipients. With the new design, it's now easy: select all, copy (and repeat once if you have a Cc field, okay). There's a reason this To/Cc design is what most (all?) desktop/mobile clients do.