How can we put the prices on variants of a product?
I learn that Odoo does this by adding or manipulating the base price of the product.
I don't find documentation on how to do this with pricelists.

An easy example:

We sell Zippers of size T5 in different lengths and colors.
If I put these options in one article with two attributes (length and color) the prices are different for each length. The color does not change the price.
It is impossible to manage prices with a system of a base price plus ... for each different length. We have hundreds of other articles with the same problem.

As Odoo is used all over the world I suppose that this problem has already been solved many times, but I don't find the solution in the documentation or on this forum.

So please share your solution(s).

Thanks