When a user taps the "forward pointing" arrow on a mini-popup:
They are presented with a more detailed popup:
I suggest that the down arrow button on the right hand side, and the X button on the left hand side of the detailed popup be removed. I suggest these be replaced by a single button on the left hand side that is a "backward pointing" arrow in the same style as the "forward pointing" arrow that the user tapped to open the detailed popup.
The rationale behind this is two-fold:
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