Yeah we definitely want to make the gradient and colors configurable.

What form factor would make the most sense for you? Maybe a a cli command that renders the diff in cli or html?

colorbrewer has proven high contrast gradients and also color blind options.

a cli command with two options, console (color) and HTML opens all doors, right?

Either would work, I think. How I do it right now is that I let AI edit automatically, but then check the diff in Cursor before I stage my Git changes. May be different for others.