This is a “tape like” MACD. The difference between the MACD and the signal line is plotted as a tape instead of plotting two separate lines. You can customize the MACD variables and the colors.
MACD stands for Moving Average Convergence / Divergence and measures the difference between two Exponential Moving Averages (EMAs). Read more about it here: Color MACD for Metatrader 5
The most popular formula for the MACD indicator are the 26-day and 12-day Exponential Moving Averages (EMAs).