Clicking on the widget will show a breakdown of data received and transmitted. The weird names like 'eth0' and 'rmnet1' are internal Android data interface names. These seem to vary between devices.
* Each light is approx a power of 10 bytes/s, so 1 light = 1 B/s, 4 = 1 kB/s etc.
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Some variations are implemented with other pieces for more entertainment.
keyword : chess, puzzle