Volume Weighted Exponential Moving Average gives additional support / resistance lines to track as well as giving confidence to there respective EMAs.
A VWEMA will act much faster to volume spikes.
Intraday, Daily, and Weekly VWAPs are also shown to give more support / resistance lines to track.
The normal EMA lines (Thick ones) have colours based on a matrix calculated in the back. The Fast EMA is using 20 RSI indicators tracking how many cross above 50. The slow EMA is using 40 MACDs histograms when they cross mid point.
The VWEMA and the fill is graded on 20(fast) and 40(slow) VWEMAs crossovers.