Console screen
A device dashboard as a front panel: AppShell, six StatTile readouts, an LED level matrix in a Panel, status lights, a takes Table and Pagination. Proves density and data at scale — whether the material language still holds when nothing on the screen has room.
Feel A dense front panel: six readouts, a meter, a channel list — and the material still holds when nothing has room.
Preview
Channel 1
Live input, session 004.
Takes
| Take | Length | Peak | State |
|---|---|---|---|
| Take 12 — verse | 01:58 | -3.1 dB | Kept |
| Take 11 — verse | 02:04 | -2.8 dB | Review |
| Take 10 — chorus | 01:12 | -1.4 dB | Kept |
| Take 9 — chorus | 01:09 | -0.9 dB | Muted |
| Take 8 — bridge | 00:47 | -5.2 dB | Kept |
| Take 7 — bridge | 00:51 | -4.7 dB | Review |
Or let the agent fetch it: get_component("console") on the Echo MCP server.
Installation
First time? Run npx echo-ui-cli init once — it sets the project up, and add refuses to run before it.
At a glance
- Version
- 0.3.0
- Weight
- 11.9 KB · 100.5 KB with what it imports · 6.8 KB of CSS (minified and gzipped; React not counted)
- Needs
- app-shell (Echo, brought with it), panel (Echo, brought with it), table (Echo, brought with it), stat-tile (Echo, brought with it), lcd-chip (Echo, brought with it), status-dot (Echo, brought with it), chart (Echo, brought with it), badge (Echo, brought with it), menu (Echo, brought with it), segmented (Echo, brought with it), engraved-plate (Echo, brought with it), pagination (Echo, brought with it)
Usage
import { ConsoleScreen } from "@/echo/console";
<ConsoleScreen product="STUDIO A" takes={takes} levels={levels} channels={channels} />Composition
ConsoleScreen AppShell EngravedPlate StatusDot Segmented Panel StatTile LcdChip Chart Table Badge Menu Pagination
Examples
With your own data
Every list is a prop; the screen owns only which channel and page are selected.
<ConsoleScreen product="STUDIO A" takes={takes} levels={levels} channels={channels} />Accessibility
- Built on AppShell, so it gets its landmarks and skip link.
- The selected channel carries
aria-current, not only a lit rail. - The readouts are named groups and the chart is an image with a spoken summary; the takes are a real table.
- The screen owns the page's
<h1>. Inside another page, passembedded: headings drop a level and AppShell drops its landmarks.
Tested against WCAG 2.2 AA on every release:
axe— No axe violations, in the component's own gallery and on its page.keyboard— Every action is reachable and operable from the keyboard alone.focus-visible— Focus is visible on every focusable part, in normal and forced-colors mode.forced-colors— State stays visible when the look's colours are replaced by the system's.target-size— Every target's real hit area is at least 24×24px, at every density.reflow— Content reflows into 320px and survives a doubled text size.
Not covered: screen-reader: not yet verified by a person. Everything above is a machine check; a person has not yet driven this component with a screen reader.
Props
| Prop | Type | Default |
|---|---|---|
embeddedThis screen is inside another page: the title drops to <h2> and AppShell drops its landmarks, so the page keeps one <h1> and one <main>. | boolean | false |
productName on the rail and the plate. | string | "ECHO ONE" |
takesTable rows. Defaults to a demo session. | object[] | |
levelsLevel history, oldest first, on a fixed 0..100 scale. | number[] | |
channelsChannels down the left rail. | string[] |
Anti-patterns
- Do not embed this screen in another page without
embedded. It owns the page's <h1>, so a preview or a marketing page that renders it ends up with two first-level headings, and a screen-reader user's outline of the page stops making sense. - Do not let the level matrix rescale itself. Without a fixed
maxthe ceiling is the largest value present, so a new peak silently shrinks all the history behind it — the one thing a live readout must not do. - Do not report a take's state with the badge colour alone. The badge carries the word; colour alone is lost on anyone with a colour-vision deficiency, on a screen reader, and in greyscale.
- Do not put the session's destructive actions in the rail menu without a confirm. A menu item fires on the first click — send anything that discards a take through an AlertDialog.
- Do not add axes and tooltips to the Chart to make this feel more like a dashboard. It is a device readout; the moment it needs hit-testing, the screen wants a real charting library beside it, not a heavier Chart.
Changelog
- The drawn device (
echo-ui-core,echo-ui-cli, every component that draws its own material). A seed's newrendersetting ismolded(Echo as it has always been: plastic lit by one key light) ordrawn: the same parts drawn in the ink, the way a spec sheet draws a key. Every part is outlined at one weight (--echo-line,--echo-line-width), hollow on the body; a raised part stands on a hard ink edge as deep as it rises and travels down it when pressed; a recess is an outline drawn inside; something floating stands on a deeper edge. There's no light, so no gloss, no soft shadow and no glow: what a molded device lights (an LED, the rail, a readout, the focus ring, a fader's knob, a radio's pip) is solid ink, and a low-emphasis action is its label underlined. In black and white (the accent the ink) "on" is solid ink and what's drawn on it inverts: a switch's thumb turns paper, a fader's knob is knocked out with a paper ring. The primary key is the paper key that stands highest, on an ink edge twice as deep as a neutral one's, the way a spec sheet draws its CTA. The accent stays the seed's own colour as a flat fill for what's on (a chosen segment, a checked box, a slider's travel, a switch that's on), so an acid highlighter is acid, not the olive a molded device holds it to; what's drawn on it is the ink, or the body when the accent is too deep for the ink. Pressing, travel, sound, what each material is for and every contrast guarantee are unchanged.npx echo-ui-cli style set render drawnturns it on; a style sets it in its seed; the published style and config schemas describe it, andDESIGN.mdsays how a drawn device builds. A molded device renders exactly as before: every line is 0px wide there, and each drawn value a component reads (--echo-drawn-fill,-on-fill,-ink,-rule,-glass,-hollow,-decoration) isinitial, so it falls back to what the component always drew. HardwareButton's bed is the one new hand-tuned shadow: a drawn key stands on its own edge instead of being drawn in a recess. - Every item needs
echo-ui-core0.3.0 (all components). The drawn device, readability past AA and the design tests live in core, and the components that use them are built against it, so each item now declaresecho-ui-core >=0.3.0 <0.4.0. Update core with the items:npm install echo-ui-core@^0.3.0(or your package manager's), thennpx echo-ui-cli update. An item whose files didn't change is the same code under a new version; the 0.2.0 files stay published. - The light device (
echo-ui-core,echo-ui-cli). Echo can be light: a pale chassis makes a device molded in light plastic, like a white calculator or a cream radio, and a dark one makes the device Echo has always been. There's no setting and no mode to switch; the chassis decides (devicePolarity, andvalues.polarityon the theme). On a light device the page is light: its ground, the well, is the body barely set in. Caps get their own ladder, a step lighter than the body with a lit rim that stops short of white, so they keep their bevel; undersides and seams are shaded darker; dim text moves toward the ground by the same step as on a dark device, and reads about 6:1 on it. Screens are paper glass printed in ink, because a glow on a pale body is a smudge. What's lit (an LED, the current rail) is still the accent, held to 3:1 on every ground, so on is brighter than off; the text it prints (a readout, a count, a current tab) and the focus ring are the accent's ink, a step deeper and held to AA, in the newaccent-inkrole. The primary cap is the same cap as a dark device's, the accent with a light label: its label is the newprimary-cap-inkrole, and progress cells, loader dots and a meter's fill, the same plastic, read 3:1 on the page. A neutral cap or a slider that fills with it under its own dark label fills with the newpour-*roles, the accent's pale stops. Shadows are drawn at half their weight, in a deep colour of the body's own hue (--echo-cast-ink) instead of black. Every guarantee holds as it does on a dark device, and the contrast sweep now runs on light bodies too. A dark seed makes exactly the theme it did before, and the new roles equal the ones they stand for there. The components that mixed a recess toward black, painted paper in the text colour or lit a pillow of light with it read the theme's new--echo-shade-ink,--echo-paper-stockand--echo-paper-inkinstead, with the old value as the fallback, and a reflective screen reads--echo-screen-*; the components that print a lit label read--echo-primary-cap-inkand--echo-accent-inkthe same way; every rail is drawn in the glow, and every focus ring, theringrecipes included, in the ink.style usewears a light style now, andstyle checksays which device a style makes. A dark screen tint on a light body is still refused: one text colour can't serve both, and the theme says so. - Components whose shadow is a recipe read it by name. 71 shadows in 54 items now say
var(--echo-shadow-<name>, <the same shadow>), so they look exactly as they did (every docs page was compared before and after) and follow a theme's recipes. Scope declares the recipes that read the accent again, so a Scope's own colour still reaches its focus rings and glows, and reflective screens do the same for theirs. Shadows that move with their part (a cap's drop as it's pressed) stay in the component. - Comments only, no behaviour change. Comments in the component source used to cite documents, milestones and ticket numbers from Echo's own planning, none of which exist in your project. The citations are gone and the sentences around them stay. Where a comment was only a citation, it now says what it meant. Three development warnings (
HardwareButton'sengraved/captionchecks andStatusDot's missing-label check) also dropped the ticket code at the end of the message.echo-ui diffwill show changes in most items; none of them are to code. - An item's version is now a function of declared data, not of how the changelog is formatted. The version an item ships under is published once and never rewritten, and it used to be inferred from prose: a regex for a bolded "Breaking" run across the whole unreleased section, and attribution by "does a bullet mention this name in backticks". One breaking entry therefore moved every item that changed that cycle, and an entry explaining that "
MenuandSheetare unchanged here" filed itself as a change to Menu and Sheet — which it really had. - The agent brief says Echo has not shipped.
llms.txtand the MCP server's instructions led withnpx echo-ui-cli init, and that name on npm is a reserved stub with no executable — so a model following the brief wrote an install step that fails with npx's own error. The brief now opens with the caveat, and the docs carry it on every surface that shows a command. One switch (CLI_RELEASED) silences all of them at launch, and a test refuses to let one move without the others. Affectsall componentsonly in what the brief says about installing them; no item's props, CSS or rendered semantics change. - Echo's home is
echo-ui.com. The registry, the docs and the packages all move to it fromecho.nawwara.studio. Nothing was published under the old host, so noecho.jsonanywhere points at it and there is nothing to migrate — this is the last release where that is true. - Weights, line heights, letter-spacing, z-index, border widths and icon sizes come from the theme scales in
all components, with the old value as a fallback, so components keep working withecho-ui-core@0.0.1. Strays moved to the nearest step: most by under a pixel; HardwareButton icons are 14/16/20px (were 15/17/19). - A light device's recesses keep the body's hue in Chromium (
echo-ui-core, BUG-166). Chromium drops the hue of a colour under 0.02 chroma when it mixes in oklch, and draws the mix at hue 0, a rose. A light device's plastic is that grey, so on a lilac body every field, track and rail was pink. A mix made only of greys is made in oklab now, which has no hue to lose; a mix with an accent in it stays in oklch. On a dark device nothing you can see changes. - On a phone, a tapped part no longer stays lit (BUG-143). A phone leaves what you tapped under
:hoveruntil the next tap, so a table row stayed shaded and a trigger stayed lit after the finger lifted. Hover styles now apply only where there's a pointer that can hover (@media (hover: hover)), in all 23 components that had one. Checked, active and focus styles that shared a rule with them still apply everywhere. - Content now reflows into a 320px screen (400% zoom) and survives a doubled browser text size (WCAG 1.4.10, 1.4.4), across
all components.Select's 180px floor,NumberField's readout,SegmentedandStepsas flex items,EmptyState's grid columns, andAvatar's fixed-pixel disc all gave way;Panelcounts its padding inside a width you set (box-sizing: border-box), so a<Panel style={{ width: 220 }}>is now 220px wide overall rather than 260px. - Templates as installable blocks —
echo-console.