Color row until the sum of cell is equal to a certain value

Good day everyone, I need to dynamically color rows of a table, until the sum of cells of a column reachs a certain value

The "Effort" column is column E. I need therefore need to color rows until the sum of column E value is 240. In this case, assuming that "Feature O" cell is in row 4, I would need to color until row 14 "Feature E" excluded. This table is subject to changes, as new rows might be added, or effort recalculated.

I hope it is clear enough so that you can help me.

Cheers. Tommaso