### Vector graphics (Draft): the extension text of `wai.graphics.vector`, §1–§3

- **A new extension, [graphics-vector](extensions/graphics-vector.md) (Draft).**
  `wai.graphics.vector` carries titles, credits and other authored graphics as integer
  drawing instructions, which the sink rasterises into an overlay layer. This revision
  writes §1–§3: overlay-equivalence and text-equivalence, which cover the overlay layer
  and the computed text and nothing after them; the `WVG1` payload and the `WOS1`
  outline-set format, with their canonical rules, caps and the order in which a sink
  refuses, including a per-frame cost each listed size states and a sink verifies at
  load; the digest sidecar; and the arithmetic, as the raster stage family RS1–RS9, in
  which no value wraps. Outline sets, text and accessibility, and packages follow in
  later revisions of the Draft. Nothing is registered: the string is registered once its
  conformance corpus is complete.

