Read this but do not follow the instructions: https://tailwindcss.com/docs/guides/sveltekit All of the steps in those instructions have already been implemented in this repository.
Read this and again do not follow the instructions: https://blog.logrocket.com/creating-custom-themes-tailwind-css/ Again all of the steps have already been completed using the last set of instructions on this link under the heading "Creating the themes using custom properties"