CALC: how to copy style from a cell to another one

I have a table with two columns: one for text and one for numbers (numbers and text are related to one another)
I have created a conditional color gradient for column of numbers
Now I want to copy the style of that column in the column of text so the cells of each row has the same style.

How can I do?

Hallo

There is no way to extend this special kind of CF to Neighbour-Columns, not in GUI nor through the API.

You have to reimplement the whole Functionality by Script bound to Sheet-event →→Content changed