The only difference is that I included the weekly EMA26 as a filter and you can plot it on the graph if you want (unchecking the Weekly EMA26 won't turn the filter off, will only stop plotting it).
The indicator works this way:
When the Histogram is growing UP, the EMA13 is pointing UP AND the Weekly EMA26 is pointing UP, the bar is Green
When the opposite is true, the bar is Red.
When any condition from both green and red is not true, the bar is blue.
In my opinion, this particular indicator works better on the D1 time frame. I recommended using the original one, by astraloverflow for other time frames.
I hope it is useful!