Great stuff, Jesse!

You may want to publicly hide your /assets/ folder, in case you have "protected" work to keep protected.

Are these all static HTML files? Or you using a generator?

Considering the simple structure of the site, it might be easier just to write it all in Markdown – or a Markdown file for each Category.

However, if you want to loop through... For your YAML file, just write it similarly to how you would write an outline. Category first, with nested Names and Links. You could also break them out into separate files.

Then for your template, you would create a loop for each category, then output each name & link.

Not currently. Export options are JPG, PNG, SVG.

You could create a palette with a Shared Style, and then simply change the original color. Like this: http://cl.ly/image/3y3U1B0V3d2M