Baseline is one of the best tools I have used. It does a fantastic job generating brand guidelines that can be shared and embedded. All you do is submit and logo, and it will extract the colors and create variations of your logo. That is a lot.
Moreover, your brand (colors and logo) will automatically apply to the design you created. Designs can be made using templates (it has more than you will ever use) and images (tons of images). You can customize all you want and upload your own images.
I think some things would make the product more outstanding. 1) The logo should be available for download in other formats on the branding page. For now, it is only SVG. 2) On the embedded style guide, the chat icon on their site appears as if the user were visited their website. That is annoying.
Baseline is an amazing tool. I am so happy and grateful for this deal on Appsumo. I highly recommend it.