fes.js/packages/fes-plugin-windicss/windi.config.js

export default {
    extract: {
        // A common use case is scanning files from the root directory
        include: ['**/*.{vue,jsx,tsx}'],
        // if you are excluding files, make sure you always include node_modules and .git
        exclude: ['node_modules', '.git', 'dist']
    }
};