Network and GPS Indicator

This small indicator on the lower left of the UI can have 4 states (red, orange, yellow, green). It also shown the amount of data, which is currently send and received (little red dots)

green Everything is fine, no network, GPS or server issues observed
yellow Something is not optimal, expect things to go slow
orange So, so, full functionality not really warranted
red Something is really wrong with network, GPS, maybe server, actions might work, but might also fail