Fancier units: "% of width", "% of height", "center", "centered" etc.

[andymeneely]

It would be nice if we had a layout that had something like:

hitpoints:
  x: 17.5% of width

So it would look up the deck width and then multiple 0.175 to it.

And then things like center would be half of the width of the deck.

And then centered would be center - width/2 for the thing if width is specified.

Figuring out how this works with *= and += in layouts will be tricky. Maybe warrants some warnings. But it's worth looking into.

[andymeneely]

Thought of another one: turn and deg. Like in CSS. So 0.5turn would be "half a turn" or 180 degrees. And then 180 degrees would be 180deg

[andymeneely]

Another idea for this: width: to_edge would be the card_width - x. We can also use width: to_cut and width: to_safe for similar things.