What problem does this address?

See discussion:

The current generated color ramp object is quite expansive. Now that we're precomputing default ramps as of #72847, this has a non-trivial impact on bundle size.

What is your proposed solution?

We should optimize the shape of the ramp object.

For example, the above discussion includes some ideas around either eliminating or changing the shape to simplify how colors are assigned, removing warning value from the ramp objects.