Enter your custom colors, fonts, and breakpoints, and the tool generates a tailwind.config.js theme.extend block with your palette and plugins wired in.
Yes, after replacing tailwind.config.js restart your dev server (or rebuild) so Tailwind's JIT compiler picks up the new theme values.
Yes. The output is plain CSS — add it to any stylesheet or CSS-in-JS setup that accepts raw CSS.
Only where selectors or property names match. Check specificity and load order if you see conflicts with existing rules.