Phase 5, second step, of docs/material-design-conformance.md. Two smaller pieces, and a
correction to the plan.
**41 loading states stopped being a gold spinner.** `LoadingDataIndicator` wraps every wait
in the app, and it drew a `CircularProgressIndicator` hardcoded to 80dp in
`colorScheme.secondary` -- the brand gold, which reads as a warning rather than as a wait,
on a component that has a size of its own. It now draws `LoadingIndicator`, which is M3's
component for an indeterminate wait with no progress to report and the one
`MaterialExpressiveTheme` expects to be paired with. One wrapper changed; 41 call sites
follow.
**The profile screen had two maximum-emphasis buttons, and one of them was Sign out.**
Seven actions in one list: five `TextButton`s (edit profile, key packages, change account,
profile keys, network relays) and two filled `Button`s. A filled button is M3's highest
emphasis and is meant for one action per screen, so this was two competing primaries -- and
the more prominent of the pair was the list's most destructive item.
Sharing is now `FilledTonalButton`: it is the useful action, at medium emphasis rather than
maximum. Signing out is a `TextButton` in the error colour, which is not a new pattern --
it is how leaving and deleting a group are already treated in `ChatRoomDetailScreen`.
Screenshot verified on emulator-5554: one tonal button, one red text button, five plain
ones, and a hierarchy a reader can follow.
**The plan was wrong about disabled FABs, and the code was right.** It said five screens
should stop hand-computing a container colour from a `can…` flag and pass `enabled`
instead. **No `FloatingActionButton` overload in material3 1.10 takes `enabled`** -- checked
in the source, zero matches for `enabled: Boolean` in FloatingActionButton.kt -- because
the spec's own position is that an unavailable FAB should not appear at all. Hand-computing
is the only way to show a disabled one.
More to the point, the existing code is already better than the plan assumed: it pairs the
colour with `Modifier.semantics { disabled() }` and a comment saying "looking unavailable
is not being unavailable: without this a screen reader still announces a button it is happy
to press." Left alone, and the plan corrected.
**Eight screens are left for a person.** LandingScreen puts "Sign in" beside "Create
profile", SocialPreconditionScreen puts "Invite a friend" beside "View invites", and six
others do the same. Both members of each pair are filled buttons. Which one is primary is a
product decision about what the screen is *for*, and picking wrong quietly weights a choice
the user is supposed to make freely -- so this is listed in the plan rather than guessed at
here.
**Tests.** 949 pass, 600 jvm over 73 classes and 349 android over 44, unchanged. Both
changes are composition-time rendering, which this repo has no UI test infrastructure to
assert; the device screenshot stands in for it. `:composeApp:compileDebugKotlinAndroid`
builds and the apk runs.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
mantra docs
Notes on the parts of this app whose behaviour is not recoverable by reading the code alone — where the reasoning lives in a protocol, a failure mode that is silent, or a decision that looked arbitrary and was not.
| document | covers |
|---|---|
| shared-key-ceremony.md | ChillDKG over NIP-17: the rounds, the approval gates, the chat transcript, participant ordering |
| shared-key-derivation.md | deriving further keys from the group's threshold key with FROST tweaks — why not BIP32, why no chain code, and the one rule that must not be broken |
| frost-batch-signing.md | signing several events in one ceremony — why one nonce can never cover two messages, and the phased schema, wire and UI work that follows from it |
| marmot-membership.md | how members join an MLS group, and the epoch race that makes a missing member look like a successful invite |
| member-chronicle.md | handing a member added after the work was done the group's signed record — why the events are not on the wire at all, and why the room's id is enough to verify them |
| marmot-direct-messages.md | a one-to-one message inside a group as a stock NIP-59 gift wrap — what its MIP-03 carve-out costs, why the sender cannot read their own, and the one query that would broadcast it |
| mls-skipped-keys.md | why a group event that arrives a moment late is dropped for good, which flows trigger it, the quartz fix, and the partial mitigation in this app |
| long-running-sync.md | the chat subscriptions that stay open instead of pulling once per screen — why the request queue could not simply hold one, and how the group filter follows the room list |
| dead-code.md | code in the sync and relay stack that nothing calls, why each piece is still there, and which of it is a bug rather than a leftover |
| jvm-target.md | what desktop support cost, phased — why the native chain was already done, why an empty source set in our phoenix fork was the real blocker, and why DAO tests need none of it |
| material-design-conformance.md | what the M3 foundations actually require, measured against all 43 screens — the colour pairing that renders the app's own proposals invisible, and eight phases that put the decisions back in the theme |
Start with the ceremony if you are new to this area; the Marmot notes all assume it. Read the skipped-keys note before debugging any "the other device never got it" report — it is silent, and it looks like every other kind of delivery failure. The sync note stands alone, and the dead-code inventory reads as a follow-up to it. The batch-signing note is a phased plan that has been built: read it after the derivation note, whose one rule is the same one it is built around. The member chronicle note is a phased plan that has not been built, and reads as the membership note's unanswered half: what a member who joins late can be given, and the one thing they cannot. The jvm-target note is unrelated to all of them: it is a build and packaging story. The Material Design note is a phased plan that has not been built, and is the only one about what the app looks like rather than what it does; read the jvm-target note first if you want to know why its adaptive-layout phase exists.