A green bar plots prices above the set of means. A bar plots prices below the set of means. A blue bar plots price entangled in the means. The height of the bars denotes the far-ness from the set of means.
A blue over the bars is the average of this reversion/expansion. A "crossover" of any bar (red/green) over this is indicated by a "green dot" a "crossunder" of any bar (red/green) under this is indicated by a "red dot".
The small trend strength table (when enabled) on the right side below show in a easy manner the data presented in the "Mean Angles" indicator. Refer to description there for more details.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.