Module layout 

Layout presets. A layout controls typography — heading hierarchy, section decoration, vertical rhythm — independently of the color theme.

Two presets ship:

• minimal (default): understated. H1 = bold + thin rule underneath; H2–H6 differ only by weight and dim. Best for long prose where you want the text, not the chrome, to do the work.
• vivid: leans hard on hierarchy. H1 is ALL-CAPS, banded by heavy rules above and below. H2 is prefixed with §, H3 with ▸, H4 with ›. Indentation grows slightly at H4/H5/H6. Best for reference docs where you’re scanning for section boundaries.

Structs

HeadingDecor

Decorations a layout wants drawn around a heading. The renderer consumes these to produce the actual Lines; this indirection keeps the render pipeline a dumb consumer of layout-specific choices.

RuleSpec

A full-width horizontal rule: a single repeat character plus the style used to color it.

Enums

LayoutName

Name of a typographic layout preset. Toggle at runtime with L.

Functions

decorate_heading

Look up heading decorations for the given layout, level (1–6), and theme. The returned HeadingDecor fully describes the visual treatment; the renderer only has to execute it.