Add the Fluksio look, and make it the one a dashboard starts in

Two looks were somebody else's language spoken well, and neither was the
product's. A dashboard nobody has dressed yet should look like the rest
of the app, so there is now a third set that follows the root
DESIGN-GUIDELINES.md to the letter — `--card` surfaces told from the page
by a hairline and a low shadow rather than by colour, every control a
pill, 16px panels, frosted floating chrome, one slate-blue accent spent
on what a person can act on — and it is what `look` means when nothing
says otherwise.

That also turns the exemption the other way round. The dashboard is still
allowed to look unlike the product; it just no longer does so by default.
An existing dashboard, which has never named a look, lands on the design
it had before any of this.

Restraint is the style rather than an omission here: no ripple, no glow,
no lift, and a press answered by the colour changing. The one deliberate
departure is the selector, which holds its choice in `--primary` rather
than the `--accent` the segmented rule asks for — that is a decision
about the widget, not about the look, and a control must not change what
it signals when the drawing changes. All three sets hold it the same way.

backend/fluksio/flow/dashboards.py

@@ -112,9 +112,9 @@ SETTING_DTYPES: dict[str, str] = {
     "theme": "str",
     # Read-only: the input widgets stop publishing.
     "locked": "bool",
-    # "glass" | "material": which of the two component sets draws this
-    # dashboard. Anything else is material. The two share every feature; only
-    # the drawing differs.
+    # "fluksio" | "material" | "glass": which component set draws this
+    # dashboard. Anything else is "fluksio", the app's own design. The three
+    # share every feature; only the drawing differs.
     "look": "str",
     # The dashboard's own colours, as an ordered list of hex strings. Position
     # is the role: background, surface, primary, accent, text, and anything

docs/interface/dashboards.md

@@ -100,7 +100,7 @@ set them.
 
 | Setting | Is | Driven by |
 |---|---|---|
-| **Look** | `Material` or `Glass` | a `str` message |
+| **Look** | `Fluksio`, `Material` or `Glass` | a `str` message |
 | **Theme** | `System`, `Light` or `Dark` | a `str` message |
 | **Palette** | the dashboard's colours, in order | a `list` message |
 | **Background** | the URL of an image | a `str` message |
@@ -130,11 +130,14 @@ locking a panel down remotely.
 
 ### Look
 
-**Material** lays flat, tonal cards on a plain ground. **Glass** floats
-translucent tiles over a soft, slowly moving one. They are two complete sets of
-components, not two stylesheets — but they are the same dashboard: every widget,
-every control and every keystroke behaves identically, so switching look never
-changes what a panel can do.
+**Fluksio** is the app's own design — `--card` surfaces separated by a hairline
+and a low shadow, pill controls, one slate-blue accent — and is what a dashboard
+wears until you choose otherwise. **Material** lays flat, tonal cards on a plain
+ground. **Glass** floats translucent tiles over a soft, slowly moving one.
+
+They are three complete sets of components, not three stylesheets — but they are
+the same dashboard: every widget, every control and every keystroke behaves
+identically, so switching look never changes what a panel can do.
 
 ### Palette
 

frontend/src/components/Dashboard/panels.tsx

@@ -1421,10 +1421,12 @@ export function DashboardPanel({
               onChange={(setting) => setSetting("look", setting)}
             />
             <p className="text-sm text-muted-foreground">
-              How this dashboard is drawn. Glass floats translucent tiles over a
-              soft moving ground; Material lays flat tonal cards on a plain one.
-              The widgets are the same either way — a look changes what they
-              look like and nothing about what they do.
+              How this dashboard is drawn. Fluksio is the app's own design, and
+              what a dashboard wears until you choose otherwise; Material lays
+              flat tonal cards on a plain ground; Glass floats translucent tiles
+              over a soft moving one. The widgets are the same whichever you
+              pick — a look changes what they look like and nothing about what
+              they do.
             </p>
           </div>
 

frontend/src/components/Dashboard/settings.tsx

@@ -34,7 +34,7 @@ import { isLight, parsePalette, rolesOf } from "./ui/core/theme"
 export const SETTING_DTYPES = {
   theme: "str",
   locked: "bool",
-  /** `glass` or `material`; anything else is material. */
+  /** `fluksio`, `material` or `glass`; anything else is `fluksio`. */
   look: "str",
   /** Hex colours, roles by position — see `ui/core/theme.ts`. */
   palette: "list",
@@ -88,17 +88,18 @@ export function useSetting(
   return live?.value ?? setting.value
 }
 
-/** What a dashboard is drawn as. Anything unrecorded is material. */
-export type Look = "glass" | "material"
+/** What a dashboard is drawn as. Anything unrecorded wears the app's own. */
+export type Look = "fluksio" | "glass" | "material"
 
-/** The looks, as the editor offers them. */
+/** The looks, as the editor offers them. The dashboard's own comes first. */
 export const LOOK_CHOICES = [
+  ["fluksio", "Fluksio"],
   ["material", "Material"],
   ["glass", "Glass"],
 ] as const
 
 export const lookOf = (value: unknown): Look =>
-  value === "glass" ? "glass" : "material"
+  value === "glass" ? "glass" : value === "material" ? "material" : "fluksio"
 
 /** Which of the two component sets draws this dashboard. */
 export const useDashboardLook = (

frontend/src/components/Dashboard/ui/core/motion.ts

@@ -28,6 +28,17 @@ type LookMotion = {
 }
 
 export const LOOK: Record<Look, LookMotion> = {
+  fluksio: {
+    // The app's own timing, as `lib/motion.ts` states it: quick, and settling
+    // without overshoot. A dashboard wearing the product's design should move
+    // the way the rest of the product does.
+    spring: { type: "spring", stiffness: 420, damping: 34, mass: 1 },
+    enter: {
+      hidden: { opacity: 0, y: 8 },
+      visible: { opacity: 1, y: 0 },
+    },
+    drift: 0,
+  },
   material: {
     spring: { type: "spring", stiffness: 550, damping: 38, mass: 1 },
     enter: {

frontend/src/components/Dashboard/ui/fluksio/Controls.tsx

@@ -0,0 +1,223 @@
+/**
+ * Fluksio: the controls.
+ *
+ * Every control is a pill, and a press is answered by the colour changing and
+ * nothing else — no ripple, no glow, no lift. That restraint is the house
+ * style rather than an omission: the one accent is spent on saying what is
+ * selected, not on saying that something was touched.
+ *
+ * Every one of these is a `ui/core` hook in a different coat — the state, the
+ * keyboard and the `aria-` come from there.
+ */
+
+import * as SelectPrimitive from "@radix-ui/react-select"
+import { Check, ChevronDown } from "lucide-react"
+import { motion } from "motion/react"
+
+import { cn } from "@/lib/utils"
+import { asOriginal, text } from "../core/config"
+import type {
+  ButtonProps,
+  InputProps,
+  SegmentedProps,
+  SelectProps,
+  SliderProps,
+  SwitchProps,
+} from "../core/contract"
+import { useSegmented, useSliderDrag, useSwitch } from "../core/controls"
+import { useLook } from "../core/look"
+import { LOOK } from "../core/motion"
+
+export function Button({
+  variant = "tonal",
+  pressed,
+  disabled,
+  label,
+  onClick,
+  children,
+}: ButtonProps) {
+  return (
+    <button
+      type="button"
+      className="fx-button w-full"
+      data-variant={variant}
+      aria-pressed={pressed}
+      aria-label={label}
+      disabled={disabled}
+      onClick={onClick}
+    >
+      <span className="min-w-0 truncate">{children}</span>
+    </button>
+  )
+}
+
+export function Switch(props: SwitchProps) {
+  const { buttonProps } = useSwitch(props)
+  return (
+    <button {...buttonProps} className="fx-switch">
+      <motion.span
+        layout
+        transition={LOOK.fluksio.spring}
+        className="fx-switch-thumb"
+      />
+    </button>
+  )
+}
+
+export function Slider(props: SliderProps) {
+  const { fraction, inputProps, marks } = useSliderDrag(props)
+  const orientation = props.orientation ?? "horizontal"
+  return (
+    <div
+      className={cn(
+        "dui-slider fx-slider",
+        orientation === "horizontal" && "w-full",
+      )}
+      data-orientation={orientation}
+      style={{ "--dui-fraction": fraction } as React.CSSProperties}
+    >
+      <div className="dui-slider-body">
+        <span className="dui-slider-rail" aria-hidden>
+          <span className="dui-slider-fill" />
+        </span>
+        {/* The control itself, laid transparent over what is drawn: it keeps
+            the keyboard, the pointer and every `aria-`, and owes the look
+            nothing. */}
+        <input {...inputProps} className="dui-slider-input" />
+        <span className="dui-slider-thumb" aria-hidden />
+      </div>
+      {marks.length > 0 ? (
+        // Decoration: the input itself announces min, max and where it stands.
+        <div aria-hidden className="dui-ticks">
+          {marks.map((mark) => (
+            <span
+              key={mark.percent}
+              className="absolute top-0"
+              // Shifted by its own share of itself: the first label sits flush
+              // left and the last flush right, so neither hangs off the tile.
+              style={{
+                left: `${mark.percent}%`,
+                transform: `translateX(-${mark.percent}%)`,
+              }}
+            >
+              {mark.label}
+            </span>
+          ))}
+        </div>
+      ) : null}
+    </div>
+  )
+}
+
+export function Segmented(props: SegmentedProps) {
+  const { chosen, thumbId, groupProps, itemProps } = useSegmented(props)
+  const vertical = props.orientation === "vertical"
+  return (
+    <div
+      {...groupProps}
+      data-testid={props.testId}
+      className="fx-segmented"
+      style={
+        vertical
+          ? undefined
+          : {
+              gridTemplateColumns: `repeat(${props.options.length}, minmax(0, 1fr))`,
+            }
+      }
+    >
+      {props.options.map(([value, label], index) => (
+        <button key={value} {...itemProps(index)} className="fx-segment">
+          {index === chosen ? (
+            <motion.span
+              aria-hidden
+              layoutId={thumbId}
+              transition={LOOK.fluksio.spring}
+              className="fx-segment-thumb"
+            />
+          ) : null}
+          <span className="fx-segment-label">{label}</span>
+        </button>
+      ))}
+    </div>
+  )
+}
+
+export function Select({
+  value,
+  options,
+  label,
+  disabled,
+  onChange,
+}: SelectProps) {
+  // The menu is portalled to `body`, which is outside the canvas — so it
+  // re-states the dashboard's own colours rather than borrowing the app's.
+  const { style } = useLook()
+  return (
+    <SelectPrimitive.Root
+      value={value}
+      onValueChange={(selected) => onChange(asOriginal(selected, options))}
+    >
+      <SelectPrimitive.Trigger
+        aria-label={label}
+        disabled={disabled}
+        className="fx-field justify-between"
+      >
+        <span className="min-w-0 truncate">
+          <SelectPrimitive.Value placeholder="Choose" />
+        </span>
+        <SelectPrimitive.Icon asChild>
+          <ChevronDown className="size-4 shrink-0 opacity-60" aria-hidden />
+        </SelectPrimitive.Icon>
+      </SelectPrimitive.Trigger>
+      <SelectPrimitive.Portal>
+        <SelectPrimitive.Content
+          position="popper"
+          sideOffset={4}
+          style={style}
+          className="fx-menu z-50 max-h-64 min-w-[var(--radix-select-trigger-width)] overflow-y-auto p-1 data-[state=open]:animate-in data-[state=open]:zoom-in-95 data-[state=open]:fade-in-0"
+        >
+          <SelectPrimitive.Viewport>
+            {options.map((option) => (
+              <SelectPrimitive.Item
+                key={text(option.value)}
+                value={text(option.value)}
+                className="fx-menu-item flex cursor-pointer select-none items-center justify-between gap-2 px-3 py-2 text-sm outline-none"
+              >
+                <SelectPrimitive.ItemText>
+                  {option.label ?? text(option.value)}
+                </SelectPrimitive.ItemText>
+                <SelectPrimitive.ItemIndicator>
+                  <Check className="size-4" aria-hidden />
+                </SelectPrimitive.ItemIndicator>
+              </SelectPrimitive.Item>
+            ))}
+          </SelectPrimitive.Viewport>
+        </SelectPrimitive.Content>
+      </SelectPrimitive.Portal>
+    </SelectPrimitive.Root>
+  )
+}
+
+export function Input({
+  value,
+  type,
+  label,
+  disabled,
+  onChange,
+  onCommit,
+}: InputProps) {
+  return (
+    <input
+      className="fx-field"
+      value={value}
+      type={type}
+      aria-label={label}
+      disabled={disabled}
+      onChange={(event) => onChange(event.target.value)}
+      onBlur={onCommit}
+      onKeyDown={(event) => {
+        if (event.key === "Enter") onCommit()
+      }}
+    />
+  )
+}

frontend/src/components/Dashboard/ui/fluksio/Data.tsx

@@ -0,0 +1,213 @@
+/**
+ * Fluksio: the readings.
+ *
+ * Plain fills on recessed tracks, and every number written out beside the
+ * picture it is drawn as — an angle or a length nobody can measure is not a
+ * reading. Data colours come from the dashboard; the surfaces around them do
+ * not compete for attention with the readings on them.
+ */
+import { motion, useTransform } from "motion/react"
+
+import { cn } from "@/lib/utils"
+import { arcPath, GAUGE_START, GAUGE_SWEEP, GAUGE_TRACK } from "../core/arc"
+import { cssOf } from "../core/color"
+import { format } from "../core/config"
+import type {
+  BarProps,
+  ColorDiskProps,
+  GaugeProps,
+  ReadoutProps,
+} from "../core/contract"
+import { TESTID } from "../core/contract"
+import { useColorDisk } from "../core/disc"
+import { useAnimatedFraction, useAnimatedNumber } from "../core/values"
+import { Slider } from "./Controls"
+
+export function Readout({
+  value,
+  precision,
+  unit,
+  size = "hero",
+}: ReadoutProps) {
+  const { label, numeric } = useAnimatedNumber(value, precision)
+  return (
+    <span data-testid="readout" className="flex min-w-0 items-baseline gap-1.5">
+      <span
+        className={cn(
+          "min-w-0 truncate",
+          size === "hero" ? "dui-hero" : "tabular-nums",
+        )}
+      >
+        {numeric ? (
+          <motion.span>{label}</motion.span>
+        ) : (
+          format(value, precision)
+        )}
+      </span>
+      {unit ? (
+        <span
+          className={cn(
+            "shrink-0 text-muted-foreground",
+            size === "hero" && "dui-hero-unit",
+          )}
+        >
+          {unit}
+        </span>
+      ) : null}
+    </span>
+  )
+}
+
+export function Gauge({ value, min, max, precision, unit, label }: GaugeProps) {
+  const fraction = useAnimatedFraction(
+    value === null
+      ? 0
+      : Math.min(1, Math.max(0, (value - min) / (max - min || 1))),
+  )
+  const { label: reading, numeric } = useAnimatedNumber(value, precision)
+  return (
+    <div className="flex min-h-0 flex-1 items-center justify-center">
+      <svg
+        viewBox="0 0 100 78"
+        className="h-full max-h-full w-full"
+        role="img"
+        aria-label={`${label}: ${format(value, precision)}${unit ?? ""} of ${max}`}
+      >
+        <path
+          d={GAUGE_TRACK}
+          fill="none"
+          stroke="var(--muted)"
+          strokeWidth={9}
+          strokeLinecap="round"
+        />
+        {/* The same full arc as the track, revealed rather than re-pathed: `d`
+            is not animatable, so a reading that redrew the arc could only
+            jump. `pathLength` normalises it, which makes the reveal the
+            fraction itself. */}
+        <motion.path
+          d={arcPath(GAUGE_START, GAUGE_START + GAUGE_SWEEP)}
+          style={{ pathLength: fraction }}
+          fill="none"
+          stroke="var(--primary)"
+          strokeWidth={9}
+          strokeLinecap="round"
+        />
+        <text
+          x={50}
+          y={54}
+          // User units of the viewBox, not the text scale: the readout has to
+          // stay proportional to the dial at whatever size the tile is.
+          fontSize={13}
+          textAnchor="middle"
+          className="fill-foreground tabular-nums"
+        >
+          {numeric ? (
+            <motion.tspan>{reading}</motion.tspan>
+          ) : (
+            format(value, precision)
+          )}
+          {unit ?? ""}
+        </text>
+      </svg>
+    </div>
+  )
+}
+
+function Row({ row }: { row: BarProps["rows"][number] }) {
+  const fraction = useAnimatedFraction(row.fraction)
+  const width = useTransform(fraction, (at) => `${at * 100}%`)
+  return (
+    <div
+      data-testid={TESTID.barRow}
+      role="img"
+      aria-label={`${row.label} ${format(row.value, row.precision)}${row.unit ?? ""}`}
+      className="dui-bar-row"
+      style={{ "--dui-fill": row.color } as React.CSSProperties}
+    >
+      <span className="dui-bar-label">{row.label}</span>
+      <span className="dui-bar-track fx-track">
+        <motion.span
+          data-testid={TESTID.barFill}
+          className="dui-bar-fill fx-fill"
+          style={{ width }}
+        />
+      </span>
+      {/* Beside the track rather than on it: a number written on a fill has to
+          clear the fill it sits on and the track it slides onto, and one that
+          reads across a room cannot do both. */}
+      <span className="dui-bar-value">
+        {format(row.value, row.precision)}
+        {row.unit ?? ""}
+      </span>
+    </div>
+  )
+}
+
+export function Bar({ rows }: BarProps) {
+  // No group role of its own: each row already announces what it reads and
+  // what it is worth, and the tile's title is on the frame around them.
+  return (
+    <div className="dui-bar">
+      {rows.map((row, index) => (
+        // Two rows can read the same message under different labels; position
+        // is the identity, as it is for chart series.
+        <Row key={`row-${index}`} row={row} />
+      ))}
+    </div>
+  )
+}
+
+export function ColorDisk({
+  name,
+  hsv,
+  disabled,
+  onChange,
+  onCommit,
+}: ColorDiskProps) {
+  const { discProps, thumb, shade } = useColorDisk({
+    name,
+    hsv,
+    disabled,
+    onChange,
+    onCommit,
+  })
+  const [hue, saturation, brightness] = hsv
+  return (
+    <div className="dui-color">
+      <div
+        {...discProps}
+        data-testid={TESTID.disc}
+        className="dui-disc"
+        style={
+          {
+            "--dui-shade": shade,
+            "--dui-sx": thumb.sx,
+            "--dui-sy": thumb.sy,
+          } as React.CSSProperties
+        }
+      >
+        <span className="dui-disc-shade" aria-hidden />
+        <span
+          aria-hidden
+          data-testid={TESTID.swatch}
+          className="dui-disc-thumb fx-disc-thumb"
+          style={{ background: cssOf(hsv) }}
+        />
+      </div>
+      <Slider
+        orientation="vertical"
+        value={brightness}
+        min={0}
+        max={100}
+        step={1}
+        unit="%"
+        label={`${name} brightness`}
+        disabled={disabled}
+        onCommit={(next) => {
+          onChange([hue, saturation, next])
+          onCommit()
+        }}
+      />
+    </div>
+  )
+}

frontend/src/components/Dashboard/ui/fluksio/Surfaces.tsx

@@ -0,0 +1,182 @@
+/**
+ * Fluksio: the surfaces.
+ *
+ * The house style. A widget is a `--card` told from the page by a hairline and
+ * a low shadow rather than by colour, floating chrome is frosted, and the one
+ * accent is spent on what a person can act on. Nothing here holds state: the
+ * behaviour is in `ui/core`.
+ */
+import { Link } from "@tanstack/react-router"
+import { Lock } from "lucide-react"
+import { motion } from "motion/react"
+
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip"
+import { cn } from "@/lib/utils"
+import { ICONS } from "../../icons"
+import type {
+  BackdropProps,
+  FrameProps,
+  NoticeProps,
+  RailProps,
+} from "../core/contract"
+import { TESTID } from "../core/contract"
+import { LOOK } from "../core/motion"
+
+/** The page colour is the ground; only an image is drawn over it. */
+export function Backdrop({ image }: BackdropProps) {
+  if (!image) return null
+  return (
+    <div
+      aria-hidden
+      data-testid="canvas-ground"
+      className="pointer-events-none absolute inset-0 bg-cover bg-center"
+      style={{ backgroundImage: `url(${JSON.stringify(image)})` }}
+    />
+  )
+}
+
+function Issue({ issue }: { issue: string }) {
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>
+        <span
+          role="img"
+          className="block size-2 shrink-0 rounded-full bg-destructive"
+          aria-label={issue}
+          data-testid={TESTID.issue}
+        />
+      </TooltipTrigger>
+      <TooltipContent className="max-w-xs break-words">{issue}</TooltipContent>
+    </Tooltip>
+  )
+}
+
+export function Frame({
+  title,
+  issue,
+  grip,
+  scroll,
+  selected,
+  onClick,
+  children,
+}: FrameProps) {
+  return (
+    // A card is not a control: the click only picks it in edit mode, and every
+    // interactive element inside keeps its own role and keyboard handling.
+    // biome-ignore lint/a11y/useKeyWithClickEvents: see above.
+    // biome-ignore lint/a11y/noStaticElementInteractions: see above.
+    <div
+      data-testid={TESTID.frame}
+      data-selected={selected ? "" : undefined}
+      className="dui-frame fx-frame"
+      onClick={onClick}
+    >
+      {title ? (
+        <div
+          className={cn(
+            "dui-frame-head fx-frame-title",
+            grip &&
+              `${TESTID.grip} -m-1 cursor-grab p-1 active:cursor-grabbing`,
+          )}
+        >
+          <span className="dui-frame-title">{title}</span>
+          {issue ? <Issue issue={issue} /> : null}
+        </div>
+      ) : null}
+      <div className={cn("dui-frame-body", scroll && "dui-frame-scroll")}>
+        {children}
+      </div>
+      {/* No header to sit in, so the fault takes the corner instead — a widget
+          drawn without its title still says when it is mis-wired. */}
+      {!title && issue ? (
+        <div className="dui-frame-corner">
+          <Issue issue={issue} />
+        </div>
+      ) : null}
+      {/* And the editor still needs something to drag it by. */}
+      {!title && grip ? (
+        <span
+          aria-hidden
+          className={cn(
+            TESTID.grip,
+            "absolute left-1/2 top-1 z-[2] h-1 w-8 -translate-x-1/2 cursor-grab rounded-full bg-current opacity-20 active:cursor-grabbing",
+          )}
+        />
+      ) : null}
+    </div>
+  )
+}
+
+/** Two letters off the title, so a rail of four reads as four different things. */
+function initials(label: string): string {
+  const words = label.split(/[\s_-]+/).filter(Boolean)
+  if (words.length === 0) return "?"
+  if (words.length === 1) return words[0].slice(0, 2).toUpperCase()
+  return (words[0][0] + words[1][0]).toUpperCase()
+}
+
+export function Rail({ entries }: RailProps) {
+  return (
+    <nav
+      aria-label="Dashboards on this panel"
+      data-testid={TESTID.rail}
+      className={cn(
+        "fx-rail pointer-events-auto absolute left-3 top-1/2 z-10 flex max-h-[calc(100%-1.5rem)] w-12 -translate-y-1/2 flex-col items-center gap-1 p-1",
+        // As tall as what it carries, centred in the column it reserves: a
+        // rail of two stretched to the height of the panel is mostly empty
+        // pill. More dashboards than the panel is tall still scroll, but no
+        // bar is ever drawn — a wall panel is swiped, and there is no room.
+        "overflow-y-auto [scrollbar-width:none] [&::-webkit-scrollbar]:hidden",
+      )}
+    >
+      {entries.map((entry) => {
+        const Glyph = ICONS[entry.icon ?? ""]
+        return (
+          <Tooltip key={entry.name}>
+            <TooltipTrigger asChild>
+              <Link
+                {...entry.link}
+                aria-label={entry.label}
+                aria-current={entry.active ? "page" : undefined}
+                data-testid={`panel-rail-${entry.name}`}
+                className="fx-rail-item relative flex size-10 shrink-0 items-center justify-center text-xs font-medium"
+              >
+                {entry.active ? (
+                  <motion.span
+                    aria-hidden
+                    layoutId="fx-rail-active"
+                    transition={LOOK.fluksio.spring}
+                    className="absolute inset-0 rounded-full bg-accent"
+                  />
+                ) : null}
+                <span className="relative z-[1]">
+                  {Glyph ? <Glyph className="size-5" /> : initials(entry.label)}
+                </span>
+              </Link>
+            </TooltipTrigger>
+            <TooltipContent side="right">{entry.label}</TooltipContent>
+          </Tooltip>
+        )
+      })}
+    </nav>
+  )
+}
+
+export function Notice({ children }: NoticeProps) {
+  return (
+    <div
+      // Announced rather than merely drawn: `locked` may be driven by a flow,
+      // so the state can change under someone already looking at the page.
+      aria-live="polite"
+      data-testid={TESTID.locked}
+      className="fx-notice pointer-events-none absolute bottom-0 right-0 flex items-center gap-1.5 px-3 py-1.5 text-sm"
+    >
+      <Lock className="size-4" aria-hidden />
+      {children}
+    </div>
+  )
+}

frontend/src/components/Dashboard/ui/fluksio/fluksio.css

@@ -0,0 +1,317 @@
+/*
+ * Fluksio — the dashboard wearing the product's own design.
+ *
+ * The other two looks are somebody else's language spoken well. This one is
+ * the house style, and it follows the root `DESIGN-GUIDELINES.md` to the
+ * letter: `--card` surfaces told apart from the page by a hairline and a low
+ * shadow rather than by colour, every control a pill, 16px panels, one
+ * slate-blue accent and nothing else competing with it.
+ *
+ * Which makes it the sober one, and the right default: a dashboard nobody has
+ * dressed yet should look like the rest of the app.
+ *
+ * The one deliberate departure is the selector, whose choice is held in
+ * `--primary` rather than `--accent`. That is a decision about the widget
+ * rather than about this look — a control must not change what it signals
+ * when the look changes — so all three sets hold it the same way.
+ *
+ * Paint only; the measurements are in `../core/core.css`.
+ */
+
+[data-look="fluksio"] {
+  --fx-radius: var(--radius-lg);
+  --fx-field: var(--radius-md);
+}
+
+/* --- surfaces ------------------------------------------------------------ */
+
+.fx-frame {
+  border: 1px solid var(--border);
+  border-radius: var(--fx-radius);
+  background: var(--card);
+  color: var(--card-foreground);
+  box-shadow: var(--shadow-e1);
+}
+
+.fx-frame[data-selected] {
+  border-color: var(--primary);
+  outline: 2px solid var(--primary);
+  outline-offset: -2px;
+}
+
+.fx-frame-title {
+  color: var(--muted-foreground);
+}
+
+/* Floating chrome over content is frosted (guidelines → Overlay surfaces). */
+.fx-rail,
+.fx-notice {
+  border: 1px solid var(--border);
+  background: color-mix(in srgb, var(--card) 80%, transparent);
+  box-shadow: var(--shadow-e2);
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+}
+
+.fx-rail {
+  border-radius: var(--fx-radius);
+  color: var(--card-foreground);
+}
+
+.fx-notice {
+  border-radius: 9999px;
+  color: var(--muted-foreground);
+}
+
+/* A content chip is transparent at rest and fills on hover or when active. */
+.fx-rail-item {
+  border-radius: 9999px;
+  color: var(--muted-foreground);
+  transition:
+    background-color var(--duration-fast) var(--ease-standard),
+    color var(--duration-fast) var(--ease-standard);
+}
+
+.fx-rail-item[aria-current="page"] {
+  color: var(--foreground);
+}
+
+[data-look="fluksio"]:not([data-touch]) .fx-rail-item:hover {
+  background: color-mix(in srgb, var(--accent) 50%, transparent);
+}
+
+/* --- controls ------------------------------------------------------------ */
+
+.fx-button {
+  display: inline-flex;
+  min-width: 0;
+  min-height: var(--dui-control);
+  align-items: center;
+  justify-content: center;
+  gap: 0.5rem;
+  border-radius: 9999px;
+  padding-inline: 1.25rem;
+  font-size: var(--dui-text);
+  font-weight: 500;
+  background: var(--secondary);
+  color: var(--secondary-foreground);
+  transition: background-color var(--duration-fast) var(--ease-standard);
+}
+
+.fx-button[data-variant="filled"],
+.fx-button[aria-pressed="true"] {
+  background: var(--primary);
+  color: var(--primary-foreground);
+}
+
+.fx-button[data-variant="text"] {
+  background: transparent;
+}
+
+[data-look="fluksio"]:not([data-touch]) .fx-button:hover {
+  background: color-mix(in srgb, var(--secondary) 80%, var(--foreground));
+}
+
+[data-look="fluksio"]:not([data-touch]) .fx-button[data-variant="filled"]:hover,
+[data-look="fluksio"]:not([data-touch]) .fx-button[aria-pressed="true"]:hover {
+  background: color-mix(in srgb, var(--primary) 90%, var(--foreground));
+}
+
+.fx-button:disabled {
+  opacity: 0.5;
+  pointer-events: none;
+}
+
+.fx-switch {
+  position: relative;
+  display: inline-flex;
+  width: calc(var(--dui-control) * 1.6);
+  height: calc(var(--dui-control) * 0.75);
+  flex: none;
+  align-items: center;
+  justify-content: flex-start;
+  border-radius: 9999px;
+  padding: 0.125rem;
+  background: var(--input);
+  transition: background-color var(--duration-fast) var(--ease-standard);
+}
+
+.fx-switch[data-state="on"] {
+  justify-content: flex-end;
+  background: var(--primary);
+}
+
+.fx-switch-thumb {
+  display: block;
+  height: calc(var(--dui-control) * 0.75 - 0.25rem);
+  aspect-ratio: 1;
+  border-radius: 50%;
+  background: var(--background);
+  box-shadow: var(--shadow-e1);
+}
+
+.fx-switch:disabled {
+  opacity: 0.5;
+  pointer-events: none;
+}
+
+.fx-slider .dui-slider-rail {
+  border-radius: 9999px;
+  background: var(--muted);
+}
+
+.fx-slider .dui-slider-fill {
+  border-radius: 9999px;
+  background: var(--primary);
+}
+
+.fx-slider .dui-slider-thumb {
+  border: 2px solid var(--primary);
+  background: var(--background);
+  box-shadow: var(--shadow-e1);
+}
+
+/* The one segmented shape: a single border pill, no dividers, transparent
+   segments — with the choice held in the primary the widget signals with. */
+.fx-segmented {
+  position: relative;
+  display: grid;
+  min-width: 0;
+  align-items: center;
+  border: 1px solid var(--border);
+  border-radius: 9999px;
+  padding: 0.25rem;
+}
+
+.fx-segmented[data-orientation="vertical"] {
+  height: 100%;
+  grid-auto-flow: row;
+  grid-auto-rows: minmax(0, 1fr);
+  border-radius: var(--fx-radius);
+}
+
+.fx-segment {
+  position: relative;
+  display: flex;
+  min-width: 0;
+  min-height: calc(var(--dui-control) - 0.5rem);
+  align-items: center;
+  justify-content: center;
+  border-radius: 9999px;
+  padding-inline: 0.625rem;
+  font-size: var(--dui-text);
+  color: var(--muted-foreground);
+  transition: color var(--duration-fast) var(--ease-standard);
+}
+
+.fx-segment[data-active] {
+  color: var(--primary-foreground);
+}
+
+[data-look="fluksio"]:not([data-touch]) .fx-segment:not([data-active]):hover {
+  background: color-mix(in srgb, var(--accent) 50%, transparent);
+}
+
+.fx-segment-thumb {
+  position: absolute;
+  inset: 0;
+  z-index: 0;
+  border-radius: 9999px;
+  background: var(--primary);
+}
+
+.fx-segment-label,
+.fx-switch-thumb,
+.fx-lift {
+  position: relative;
+  z-index: 1;
+}
+
+.fx-segment-label {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.fx-field {
+  display: flex;
+  width: 100%;
+  min-width: 0;
+  min-height: var(--dui-control);
+  align-items: center;
+  gap: 0.5rem;
+  border: 1px solid var(--input);
+  border-radius: 9999px;
+  background: var(--background);
+  padding-inline: 1rem;
+  font-size: var(--dui-text);
+  color: var(--foreground);
+  text-align: left;
+  transition:
+    border-color var(--duration-fast) var(--ease-standard),
+    box-shadow var(--duration-fast) var(--ease-standard);
+}
+
+.fx-field::placeholder {
+  color: var(--muted-foreground);
+}
+
+.fx-field:disabled {
+  opacity: 0.5;
+  pointer-events: none;
+}
+
+/* Menus and popovers are 12px with the floating elevation. */
+.fx-menu {
+  border: 1px solid var(--border);
+  border-radius: var(--fx-field);
+  background: var(--popover);
+  color: var(--popover-foreground);
+  box-shadow: var(--shadow-e2);
+}
+
+.fx-menu-item {
+  border-radius: var(--radius-sm);
+}
+
+.fx-menu-item[data-highlighted] {
+  background: var(--accent);
+  color: var(--accent-foreground);
+}
+
+/* --- readings ------------------------------------------------------------ */
+
+.fx-track {
+  border-radius: 9999px;
+  background: var(--muted);
+}
+
+.fx-fill {
+  border-radius: 9999px;
+  background: var(--dui-fill, var(--primary));
+}
+
+.fx-disc-thumb {
+  border: 3px solid var(--card);
+  box-shadow: var(--shadow-e1);
+}
+
+/* --- focus --------------------------------------------------------------- */
+
+[data-look="fluksio"]
+  :is(
+    .fx-button,
+    .fx-switch,
+    .fx-segment,
+    .fx-field,
+    .fx-rail-item,
+    .dui-disc
+  ):focus-visible {
+  outline: none;
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ring) 50%, transparent);
+}
+
+[data-look="fluksio"] .dui-slider-input:focus-visible ~ .dui-slider-thumb {
+  outline: none;
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ring) 50%, transparent);
+}

frontend/src/components/Dashboard/ui/fluksio/index.ts

@@ -0,0 +1,30 @@
+/**
+ * Fluksio — the dashboard in the product's own design, and the one a
+ * dashboard wears until somebody chooses otherwise.
+ *
+ * Every entry of `ComponentSet` is implemented here; the behaviour comes from
+ * `ui/core`, so this set cannot do anything the others cannot.
+ */
+import "./fluksio.css"
+
+import type { ComponentSet } from "../core/contract"
+import { Button, Input, Segmented, Select, Slider, Switch } from "./Controls"
+import { Bar, ColorDisk, Gauge, Readout } from "./Data"
+import { Backdrop, Frame, Notice, Rail } from "./Surfaces"
+
+export const fluksio: ComponentSet = {
+  Backdrop,
+  Frame,
+  Button,
+  Switch,
+  Slider,
+  Segmented,
+  Select,
+  Input,
+  Readout,
+  Gauge,
+  Bar,
+  ColorDisk,
+  Rail,
+  Notice,
+}

frontend/src/components/Dashboard/ui/index.ts

@@ -2,7 +2,7 @@
  * The dashboard's components, in whichever look this dashboard wears.
  *
  * A widget asks for the set and draws with it; it never learns which one it
- * got, which is what keeps the two looks the same dashboard. Behaviour lives
+ * got, which is what keeps the three looks the same dashboard. Behaviour lives
  * under `core/` and is shared, so there is nothing for a set to disagree
  * about beyond markup and motion.
  */
@@ -11,10 +11,11 @@ import "./core/core.css"
 import type { Look } from "../settings"
 import type { ComponentSet } from "./core/contract"
 import { useLook } from "./core/look"
+import { fluksio } from "./fluksio"
 import { glass } from "./glass"
 import { material } from "./material"
 
-const SETS: Record<Look, ComponentSet> = { glass, material }
+const SETS: Record<Look, ComponentSet> = { fluksio, glass, material }
 
 /** The components this dashboard is drawn with. */
 export const useUi = (): ComponentSet => SETS[useLook().look]

frontend/tests/widgets.spec.ts

@@ -626,14 +626,14 @@ async function setLook(
   })
 }
 
-// Both looks, in both themes. A look is mostly colour and depth, so the four
-// screenshots are the assertion that neither collapses — and the checks around
-// them are that a look changes how the panel is drawn and nothing else.
+// Every look, in both themes. A look is mostly colour and depth, so the
+// screenshots are the assertion that none of them collapses — and the checks
+// around them are that a look changes how the panel is drawn and nothing else.
 for (const scheme of ["light", "dark"] as const) {
   test.describe(`${scheme} theme`, () => {
     test.use({ colorScheme: scheme })
 
-    for (const look of ["material", "glass"] as const) {
+    for (const look of ["fluksio", "material", "glass"] as const) {
       test(`the panel reads in ${scheme} ${look}`, async ({ page }) => {
         await openPanel(page)
         await setLook(page, dashboardName, { look: { value: look } })
@@ -691,7 +691,7 @@ for (const scheme of ["light", "dark"] as const) {
         path: `screenshots/widgets/${scheme}-palette.png`,
       })
       await setLook(page, dashboardName, {
-        look: { value: "material" },
+        look: { value: "fluksio" },
         palette: { value: [] },
       })
     })