Paint chart back ground color based on trend

[treewind]

Is it possible to paint the chart background color based on trend like this photo:

Link to Chart

 

[SleepyZ]

Is it possible to paint the chart background color based on trend like this photo:

Link to Chart

Here is an example of a Macd painted on the upper price panel based upon the Diff variable being above/below zero

input aggregationperiod = AggregationPeriod.TWO_MIN;
input fastLength = 12;
input slowLength = 26;
input MACDLength = 9;

input averageType = AverageType.EXPONENTIAL;

plot Value = MovingAverage(averageType, close(period = aggregationperiod), fastLength) - MovingAverage(averageType, close(period = aggregationperiod), slowLength);
plot Avg = MovingAverage(averageType, Value, MACDLength);

plot Diff = Value - Avg;
plot ZeroLine = 0;

Value.SetDefaultColor(GetColor(1));
Avg.SetDefaultColor(GetColor(8));
Diff.SetDefaultColor(GetColor(5));
Diff.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);
Diff.SetLineWeight(3);
Diff.DefineColor("Positive and Up", Color.GREEN);
Diff.DefineColor("Positive and Down", Color.DARK_GREEN);
Diff.DefineColor("Negative and Down", Color.RED);
Diff.DefineColor("Negative and Up", Color.DARK_RED);
Diff.AssignValueColor(if Diff >= 0
                      then if Diff > Diff[1]
                           then Diff.Color("Positive and Up")
                           else Diff.Color("Positive and Down")
                      else if Diff < Diff[1]
                           then Diff.Color("Negative and Down")
                      else Diff.Color("Negative and Up"));
def cond1 = if Diff > 0
          then Double.POSITIVE_INFINITY
          else Double.NEGATIVE_INFINITY;
def cond2 = if Diff < 0
          then Double.POSITIVE_INFINITY
          else Double.NEGATIVE_INFINITY;
input showclouds = yes;
AddCloud(if showclouds
         then cond1
         else double.nan,
         cond2,
         Color.cyan, Color.magenta);