OVERSCANUI KIT
no button at all a worn bezel with weight channels do not converge zero depth instrumented, full of smoke a field of real characters a camera looking out additive, so no shadow hairlines, no new shader no raster, so no scanlines

ov-verifier

src/ov-verifier.js

LIFTED FROM demo/verifier.html

Attributes

attribute
commandsalso a property
history
label
reports
stages
timeout

Properties

propertytypekindacceptsstaleness
commandsStructuredstructurednot on the reading protocolnot applicable

Events

event
ov:verify

Using it

import 'overscan'
import 'overscan/overscan.css'

<ov-verifier
  label="Command stack"
  stages="QUEUED:600, RELEASED:600, SENT:600, RECEIVED:600, ACCEPTED:600, EXECUTING:600, COMPLETE:600"
  commands="C40 HTR-2 ON @HTR2; C41 VLV-3 OPEN @VLV3; C42 PUMP-1 START @PUMP1; C43 BOOM DEPLOY @BOOM"
  reports="C40 QUEUED=pass, C40 RELEASED=pass, C40 SENT=pass, C40 RECEIVED=pass, C40 ACCEPTED=pass, C40 EXECUTING=pass, C40 COMPLETE=pass, C41 QUEUED=pass, C41 RELEASED=pass, C41 SENT=pass, C41 RECEIVED=timeout, C41 ACCEPTED=pass, C41 EXECUTING=pass, C41 COMPLETE=pass, C42 QUEUED=pass, C42 RELEASED=pass, C42 SENT=pass, C42 RECEIVED=pass, C42 ACCEPTED=pass, C42 EXECUTING=pass, C42 COMPLETE=tm, C43 QUEUED=pass, C43 RELEASED=pass, C43 SENT=pass"
></ov-verifier>

The CSS is a separate import in every framework. A single element can be imported on its own instead of the whole kit: import 'overscan/src/ov-chart.js'

A reading is set as a PROPERTY, never an attribute. An attribute is a string, so an array cannot survive one and a null arrives as the word "null", which the protocol would read as a value rather than a dropout.

Every ov: event is bound with addEventListener. The colon has no declarative spelling in Svelte 5, where the on: directive is gone and "onov:commit" is not an identifier, nor in JSX. Vue can bind it.

The wrapper applies attributes ITSELF and hands the framework nothing but a ref. All three frameworks set a prop as a property when the name exists on the element, and this kit has 77 getter-only properties across 43 elements. Assigning one throws, and in React it does not degrade: the whole tree fails to render. 13 elements have a getter-only name that is also a real attribute (at, bearing, digits, duration, floor, fov, fresh, hold, lat, lon, period, pitch, range, ring, rings, span, step, sweep, sweeps, traces, value), which are the ones a reader would naturally pass in markup.