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the gas gauge has the source for the stats in the bottom right, some of the speeds are listed in the whitepaper, it's in your dropdown menu right next to your avatar, top right of this screen!

it is OK to use these, just give @overkillcoin some attribution, steemit.com/@overkillcoin He said these are freeware!

awesome man thanks! best feedback I've had on here in my short time believe it or not. glad we connected. im pretty lame to this whole thing still, but im trying, just glad you could take the time to answer. powering up right now actually!