Can I buy crypto on Rainbow?

Could you please clarify for me if it's possible to purchase cryptocurrencies directly on the Rainbow platform? I'm interested in understanding the range of services offered by Rainbow and if they include facilitating the buying and selling of digital assets. If so, could you elaborate on the process and any associated fees or requirements that I should be aware of? Additionally, is there a specific selection of cryptocurrencies available for purchase on Rainbow, or does it offer a broad range of options?