@plugin directive can't be overridden

[fcrozatier]

Tailwind v4-alpha.26
Svelte v5-alpha.262
Node v22
Chrome v129
macOS

repo: https://github.com/fcrozatier/tailwind-media-modifiers

Issue

Hey!

This is a follow up to #14551.

The @plugin directive doesn't allow to both customize the defaults and still be able to override these modifications in one-off situations without using the !important modifier.

I have to import the prose gist instead of using the prose plugin to fix this

Overriding the @utility directive works fine on the other hand

Reproduction

pnpm i, pnpm dev. Layers and classes in src/app.css, src/routes/+page.svelte

And thank you for the awesome work on v4