In case you are being serious and want to know.
If your graph is set to 1min or 5 min or 1 day etc, each candle will represent that timeframe. The wicks that appear above and below each candle is as high or low the pps reached in that particular timeframe, but the hard candle itself is the opening and closing of that timeframe, if red it began at the top of the candle and ended that timeframe at the bottom, if green it began at the bottom and ended at the top.
it might have huge wick if during that timeframe a crazy wild high or low bid took it there for a moment but it ended where the hard candle is red or green.
Sample :)
News 
Market Data 
Discover 
