The BB MACD is a MACD (Moving Average Convergence Divergence) indicator variation with an addition of Bollinger bands that can help you to detect the trend change points and measuring the strength of a current trend.
The indicator is separated into two parts:
The color of the MACD depends on the slope of the MACD and the relative position within the Bollinger bands. Whenever the bands are broken, the color is changed to show you the accurate moment if the breakout happens.
You can download the indicator here: https://www.mql5.com/en/code/16699