0.13.5 — a fourth skin: atelier

A second professional business card went up on the engine, and the brief for its look fit in one sentence: the page should be clean, white and elegant, with touches of brushed copper and bottle green. None of the three existing skins could do that. “book” has warm paper, “dev” is dark, and “docs” is cool and navy.

From 0.13.5 there is a fourth, `theme: "atelier"`. The background is true white. Green serves as ink, titles and the footer. Copper appears only in details: as the rule under the header bar and the drop cap in a post, because over a large area it stops looking precious. Headings are set in Bodoni Moda and text in Jost, since a serif with that much contrast tires the eye in a long paragraph at a small size. The instance loads the typefaces in `fontsHref`; without them the skin falls back to system fonts and still works.

The brushed finish is two layers in one variable: a metal gradient and fine scratches on top. The first screenshot showed right away what not to do with it. In the `background` shorthand a given size applies only to the last layer, so the rule under the quote came out right, while the scratches spread across the whole paragraph as a grey box. Rules are now drawn with a pseudo-element.

As with “dev” and “docs”, this is tokens and the cascade only. No component knows the skin exists, and the other three did not change by a single byte.