Variable fonts?

[argyleink]

Be cool to have variable font options too: a stack of variable font names for a few categories.

[danklammer]

@argyleink I like this idea. Right Now, I know of only two variable system fonts: San Francisco on macOS and Bahnschrift on Windows.

I have explored using variable adjusted San Francisco as an option for the Industrial font stack awhile back:
https://codepen.io/danklammer/pen/yLxQrZQ/11499476a36d92c60b695da5c8111fee

I ended up opting for simplicity, keeping each font stack as a single-line font-family declaration. I think it's a good idea to show in the documentation on how you can customize each font stack (variable font adjustments or adjusting weights). I'll plan on adding this to the documentation.