ADX with Color like MACD Histogram

This is a usual ADX Indicator but the colors change when the next bar falls or grows from the previous bar.
I think that the use of ADX can be maximized by seeing whether the movement is lower or higher than the previous like MACD Histogram.
The ADX indicator is very powerful for driving long-term trends and is effectively used for 4-hour or 1-hour Time Frames.
When ADX is above level 20, the color of the Bar will be blue or light blue. The blue bar means that the bar is higher than the previous bar. The light blue bar means the bar is lower than the previous one.
When ADX is below level 20, the color of the bar will be dark gray or light gray. The dark gray bar means that the bar is lower than the previous bar. The light gray bar means the bar is higher than the previous bar.
When the bar turns blue that's when we can add shares to our winning position.
When the price is above level 40, the background of the bars will be red, indicating that the price is in a very strong trend and will run out of its thrust soon. That's when we get ready to take profit, which is when the ADX Bar which is blue turns light blue.
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FYI, I use ADX just for adding the shares to my winning position and exiting the market. I don't wait for ADX turns blue to enter the market.