In Garmin Connect app currently we can add pictures to an activity, and can even rotate them when we share. However we can't mirror them (you know the selfies...) It would be an easy to implement and nice feature if you could add a mirror button next to the rotate. And even better if we could do this also when we add a pic, not only when we share.
PS: I don't know any other place where users can open feature requests in a "transparent" way, so not only /dev/null of Garmin will see them, and they can vote for it, so I'll try it here.