Swipe trail on symbols layer unnecessary
When the symbols layer is active and you start swiping, it produces a swipe trail. Obviously, the swipe doesn't result in anything.
The other keyboards don't show a swipe trail and show the key press balloon of the key currently under the finger instead and selects that key upon release.
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On the numbers keyboard it also produces a swipe trail even though you cannot swipe anything.
Probably goes hand in hand with the second point, so I'll add it here.
It would be nice to see the key popup while gliding over the keys from the 123 key with the temporary symbols layer active.
@muleluku fixed in build 427 (and in 2.1.3 on the App Store). On the symbols page and the number pad there's no swipe trail anymore. When you slide off a key, the key under your finger lights up with the balloon, and releasing types that one. Letting go over ABC, backspace or space types nothing. On the number pad you get the highlight but no balloon, same as a normal tap there. The balloon while sliding from 123 was already added in build 424.