Candles sticks that change color with heavy volume

Sorry, my original answer contained a typo in the code and was missing the screenshot. Full text of my original answer follows:

Ok, great. In the future please be sure to use the full name of any studies that are included with Thinkorswim. The term “relative volume” can have many interpretations. Instead of this you should provide the full name of the study as it appears in Thinkorswim:  “RelativeVolumeStDev”.

Having made that clarification we have the following code. Screenshot below shows the result:

input rviLength = 60;
input numDev = 2.0;
#---------- RSI Inputs
input rsiLength = 14;
input rsiPrice = close;
input rsiAverageType = AverageType.WILDERS;
#---------- RelativeVolumeStDev
input allowNegativeValues = no;
def rawRelVol = (volume - Average(volume, rviLength)) / StDev(volume, rviLength);
def relVol = if allowNegativeValues then rawRelVol else Max(0, rawRelVol);
#---------- RSI
def netChgAvg = MovingAverage(rsiAverageType, rsiPrice - rsiPrice[1], rsiLength);
def totChgAvg = MovingAverage(rsiAverageType, AbsValue(rsiPrice - rsiPrice[1]), rsiLength);
def chgRatio = if totChgAvg != 0 then netChgAvg / totChgAvg else 0;
def rsi = 50 * (chgRatio + 1);
#---------- Condition
def paintBar = relVol > 1.5 and rsi > 65;
#---------- Paint Candles
AssignPriceColor(if paintBar then Color.YELLOW else Color.Current);