SMA and Supertrend Crypto Inverted

Here’s a brief breakdown of what the code is doing:

Inputs for SMA:

You define an input for the length of the Simple Moving Average (sma_length) with a default of 5.
Inputs for Supertrend:

ATR length (supertrend_atr_length) is set to 10.
Multiplier (supertrend_multiplier) is set to 3.
SMA Calculation:

The SMA is calculated using the ta.sma function with the closing prices over the specified length.
Supertrend Calculation:

The ta.supertrend function calculates the Supertrend and its direction (positive or negative).
Plotting:

You plot the SMA on the chart with the plot function, using the color blue.
The Supertrend is also plotted with a color that changes based on the direction. Green for an uptrend (direction > 0) and red for a downtrend (direction <= 0).
Background Color:

The background color is dynamically set to green or red based on the trend direction (Supertrend), with a transparency of 90% to give a subtle indication of the current market condition.