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feat(ui,learn,todo,train,meditate): a wave in the app's colour over the navigation bar

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The developer's choice of 7 Nov 2026 (the mockup's variant E): a tap on
another destination sends a radial glow in the app's colour over the bar
from that destination's centre, solid to 35 % of its radius and gone at
70 %, growing to cover the bar (cubic(.2, .7, .2, 1)) while it fades from
half its strength in dark mode and a third in light, over 1.2 s, behind
the destinations and clipped to the bar. None for the destination already
chosen, none with animations off, and none for a tab changed without a
tap (a link, back): the wave answers the finger. The destination chosen
takes the app's colour, its indicator tinted 22 % with it, without
Material's ripple or the indicator growing; the bar's top corners are
rounded, 20 dp, the screen showing through them.

Each app gives the frame its colour (NavigationFrame's accent, from
PaletteColor): Learn's purple, its icon's last colour, Todo's strawberry,
Train's carrot and Meditate's fern, their screens' wash.

For trying it on a phone, a debug build's Settings has a section
Navigation bar (debug), halkyon_ui's NavigationBarDebugSection, switching
live, in memory alone: the variant (A Material only, C the wave with
Material's fill, E without it, F without the indicator too), the wave's
time (0.7 to 2 s) and the corners (0 to 28 dp). Release builds never read
it and show shippingNavigationBarStyle, the debug section's start: to
remove it, delete the section from the four Settings screens and
debugNavigationBarStyle, and let effectiveNavigationBarStyle return the
shipping style.

Whats-New: Tapping a tab sends a soft wave in the app's colour across the navigation bar, now with rounded corners.
Whats-New-De: Ein Tipp auf einen Tab schickt eine sanfte Welle in der Farbe der App über die Navigationsleiste, jetzt mit abgerundeten Ecken.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-11-08 00:29:14 +01:00
commit 45fd6595e1
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
1 changed files with 789 additions and 14 deletions
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4
packages/halkyon_ui/README.md
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@ -29,7 +29,9 @@ LeanCode's lints.
`TopGradient`, `ScreenTint`, `ScreenColor`, `TintFrame`, `FramedScreen`
and `TabVisibility`; `FlushNavigationBar`, and `NavigationFrame`, every
app's frame around its tabs (the rail with the app's icon, the bar flush
with the foot with a fade above it, a tick on every choice, a status such as a recording under way above
with the foot with a fade above it, its rounded top corners and the
wave in the app's colour a tap sends over it, `shippingNavigationBarStyle`,
switched live in a debug build's `NavigationBarDebugSection`, a tick on every choice, a status such as a recording under way above
the bar), whichever router drives it;
`AppLoadingIndicator`, `ButtonLoadingIndicator`, `AppRefreshIndicator`;
`SectionCard`, `SliverCentered`, `EmptyListMessage`, `CountBadge`,