league of legends - what is the meaning of circles near allied portraits in LoL - Arqade

In the in-game gui, there is a circle near each allied portrait. I've seen it be either gray or green; what is the meaning of that circle? As far as I know, it's not saying whether the friend is

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What's the meaning of these orange circles around the map? : r

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What's the meaning of these orange circles around the map? : r

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What's the meaning of these orange circles around the map? : r

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Anyone know what the small orange/white arrows under each