Mechanisms

Touch and Icons are style mechanisms, not components: no slots, no views. Compose them into your own slots. Touch.target floors one control at 44px where the pointer is coarse; Touch.targets floors every boxed control a region draws. Icons.glyph(size) draws the icon in --icon before the element's words, and Icons.byAttribute(attribute, icons) sets --icon from an attribute's value, where icons maps each value to its resolved url(…):

const TileStyle = Style.forSlots(TileSlots)(
  {
    tile: Style.compose(
      Touch.target,
      Icons.glyph('1rem'),
      Icons.byAttribute('data-block', { Hero: iconUrl('hero') }),
    ),
  },
  { layer: L.layer('app') },
)