Add a histogram to an existing pivot point indicator

Hello, I’m looking for a programmer to modify an indicator. Basically I want to add a histogram to an indicator that calculates pivots points W1, D1, H4, H1, M30, M15, M5. For the histogram I’m only interested in the value of the main pivot point (P=high+low+close/3)

My idea is like this: when forming the new pivot (let’s say I use H1 pivot), if the value is greater than the previous one, the histogram should indicate green. If the pivot value is lower than the previous one, the histogram should indicate red (the histogram’s color remains unchanged until the next pivot is formed, regardless of price movement). I've attached a screenshot for a better view (this is EUR/USD, with H1 pivots plotted and the way the histogram should appear).

Thanks