I was really happy when they added the pictures! Dyslexia, the icons are 100% faster for me, I don't use those menus often enough to know what is in there word wise, but I can read the icons super fast.
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Get a bunch of people in a room, show them menus where the textual labels are gone, and see who can get the most right.
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Icons won't help you when they are inconsistent, or don't mean anything.
It's impossible to find a suitable visual metaphor for every possible action of every possible app and cram it into a tiny monochrome icon.