app/src/main/kotlin/io/flamenet/messenger/app/CallScreen.kt

@@ -62,13 +62,10 @@ fun CallScreenBody(
     Column(
         modifier = Modifier
             .fillMaxSize()
-            // ⚠️ The app's ground, not `colorScheme.background`. That token is
-            // a flat blue, and painting it full-screen here stamped a solid
-            // rectangle over the gradient every other screen shows — which
-            // read as "a blue box around the call area". The brush is used
-            // rather than transparency so this composable still stands on its
-            // own in the screenshot harness.
-            .background(groundBrush())
+            // ⚠️ Back to the theme's own background: the gradient this used to
+            // avoid painting over went with the purple theme (reverted
+            // 2026-09-08), so there is nothing left to clash with.
+            .background(MaterialTheme.colorScheme.background)
             .padding(horizontal = Kit.margin)
             .testTag("call-screen"),
         horizontalAlignment = Alignment.CenterHorizontally,
@@ -88,7 +85,7 @@ fun CallScreenBody(
                     initials,
                     fontSize = 40.sp,
                     fontWeight = FontWeight.Bold,
-                    color = Palette.OnDark,
+                    color = MaterialTheme.colorScheme.primary,
                 )
             }
         }

app/src/main/kotlin/io/flamenet/messenger/app/CallsScreen.kt

@@ -69,7 +69,7 @@ fun ColumnScope.CallsScreen(
         Icon(
             KitIcon.Call,
             contentDescription = "New call",
-            tint = Palette.OnDark,
+            tint = Palette.Accent,
             modifier = Modifier
                 .size(28.dp)
                 .clickable { showNewCall.value = true }
@@ -105,12 +105,12 @@ fun ColumnScope.CallsScreen(
                                     overflow = TextOverflow.Ellipsis,
                                 )
                                 Icon(KitIcon.Call, contentDescription = null,
-                                     tint = Palette.OnDark, modifier = Modifier.size(20.dp))
+                                     tint = Palette.Accent, modifier = Modifier.size(20.dp))
                                 Spacer(Modifier.width(Space.md))
                                 Icon(
                                     KitIcon.Video,
                                     contentDescription = "Video call",
-                                    tint = Palette.OnDark,
+                                    tint = Palette.Accent,
                                     modifier = Modifier
                                         .size(22.dp)
                                         .clickable {
@@ -226,7 +226,7 @@ fun ColumnScope.CallsScreen(
                     Icon(
                         KitIcon.Video,
                         contentDescription = "Video call $name",
-                        tint = Palette.OnDark,
+                        tint = MaterialTheme.colorScheme.primary,
                         modifier = Modifier.size(Kit.icon),
                     )
                 }
@@ -243,7 +243,7 @@ fun ColumnScope.CallsScreen(
                     Icon(
                         KitIcon.Call,
                         contentDescription = "Call $name",
-                        tint = Palette.OnDark,
+                        tint = MaterialTheme.colorScheme.primary,
                         modifier = Modifier.size(Kit.icon),
                     )
                 }

app/src/main/kotlin/io/flamenet/messenger/app/ChatScreens.kt

@@ -438,7 +438,7 @@ fun ColumnScope.GroupsSection(
         androidx.compose.material3.Icon(
             if (creating) KitIcon.Close else KitIcon.NewGroup,
             contentDescription = "New group",
-            tint = Palette.OnDark,
+            tint = Palette.Accent,
             modifier = Modifier
                 .size(22.dp)
                 .clickable { onCreatingChange(!creating) }
@@ -448,7 +448,6 @@ fun ColumnScope.GroupsSection(
 
     if (creating) {
         OutlinedTextField(
-            colors = fieldColors(),
             value = name,
             onValueChange = { name = it },
             label = { Text("Group name") },
@@ -797,7 +796,6 @@ fun ColumnScope.AccountScreen(
         // same duplication the contact rows had.
         SettingsRow(label = "Display name") {}
         OutlinedTextField(
-            colors = fieldColors(),
             value = displayName,
             onValueChange = { displayName = it },
             placeholder = { Text("How others see you", fontSize = 14.sp) },
@@ -819,7 +817,6 @@ fun ColumnScope.AccountScreen(
             description = "Changing it signs this device out — that is what changing it means.",
         ) {}
         OutlinedTextField(
-            colors = fieldColors(),
             value = password,
             onValueChange = { password = it },
             placeholder = { Text("At least 8 characters", fontSize = 14.sp) },
@@ -1361,16 +1358,13 @@ internal fun SectionBandPublic() = SectionBand()
 
 @Composable
 private fun SectionBand() {
-    // 🔴 **A gap, not a filled block.** On the light theme this was a 16pt band
-    // of #F3F3F3 — a barely-there grey that read as a seam between sections.
-    // Filled with `surfaceVariant` on the dark theme it became a light purple
-    // slab across the screen, which is the opposite of a separator: it drew
-    // more attention than the sections it was dividing.
-    //
-    // Letting the ground show through does the same job the grey band did,
-    // because the sections themselves are raised cards now — the gap between
-    // two panels IS the separator, and it needs no colour of its own.
-    Spacer(Modifier.fillMaxWidth().height(16.dp))
+    Box(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 0.dp)
+            .height(16.dp)
+            .background(MaterialTheme.colorScheme.surfaceVariant)
+    )
 }
 
 /**
@@ -1449,9 +1443,7 @@ internal fun Avatar(
                 initials,
                 fontSize = (size.value * 0.33f).sp,
                 fontWeight = FontWeight.SemiBold,
-                // White on the avatar circle. The accent as ink on a dark
-                // circle is a light purple mark on a dark blue field.
-                color = Palette.OnDark,
+                color = MaterialTheme.colorScheme.primary,
             )
             }
         }
@@ -1543,7 +1535,7 @@ private fun AlertGlyph(kind: String) {
         Icon(
             symbol,
             contentDescription = null,
-            tint = Palette.OnDark,
+            tint = MaterialTheme.colorScheme.primary,
             modifier = Modifier.size(Kit.icon),
         )
     }
@@ -2853,7 +2845,7 @@ fun ColumnScope.StoryStrip(
                     Icon(
                         KitIcon.Add,
                         contentDescription = null,
-                        tint = Palette.OnDark,
+                        tint = MaterialTheme.colorScheme.primary,
                         modifier = Modifier.size(Kit.icon),
                     )
                 }
@@ -2890,7 +2882,7 @@ fun ColumnScope.StoryStrip(
                         label.take(1).uppercase(),
                         fontSize = 16.sp,
                         fontWeight = FontWeight.SemiBold,
-                        color = Palette.OnDark,
+                        color = MaterialTheme.colorScheme.primary,
                     )
                 }
                 Text(
@@ -2990,7 +2982,6 @@ private fun ColumnScope.GroupMembers(
 
     if (renaming) {
         OutlinedTextField(
-            colors = fieldColors(),
             value = draftName,
             onValueChange = { draftName = it },
             label = { Text("Group name") },
@@ -3233,7 +3224,6 @@ fun ColumnScope.AddContactForm(
              fontSize = 12.sp, color = Palette.SecondaryText)
         Spacer(Modifier.height(Space.xs))
         OutlinedTextField(
-            colors = fieldColors(),
             value = gatePin, onValueChange = { gatePin = it; gateWrong = false },
             placeholder = { Text("Parent PIN", fontSize = 14.sp) },
             singleLine = true,
@@ -3269,7 +3259,6 @@ fun ColumnScope.AddContactForm(
         val card = remember(username) { ContactCard.decode(username) }
 
         OutlinedTextField(
-            colors = fieldColors(),
             value = username,
             onValueChange = {
                 username = it
@@ -3898,7 +3887,6 @@ fun ColumnScope.MailboxesSection(
     }
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = host,
         onValueChange = { host = it },
         placeholder = { Text("relay.example.com", fontSize = 14.sp) },
@@ -3907,7 +3895,6 @@ fun ColumnScope.MailboxesSection(
     )
     Spacer(Modifier.height(Space.xs))
     OutlinedTextField(
-        colors = fieldColors(),
         value = passphrase,
         onValueChange = { passphrase = it },
         placeholder = { Text("Your passphrase", fontSize = 14.sp) },
@@ -4103,7 +4090,6 @@ private fun EditMessageSheet(
         text = {
             Column {
                 androidx.compose.material3.OutlinedTextField(
-                    colors = fieldColors(),
                     value = text,
                     onValueChange = { text = it },
                     modifier = Modifier.fillMaxWidth().testTag("edit-field"),
@@ -4242,7 +4228,6 @@ internal fun ReportSheet(
 
                 Spacer(Modifier.height(Space.sm))
                 androidx.compose.material3.OutlinedTextField(
-                    colors = fieldColors(),
                     value = note,
                     onValueChange = { note = it },
                     label = { Text("Anything you want to add (optional)") },

app/src/main/kotlin/io/flamenet/messenger/app/ContactDetail.kt

@@ -80,7 +80,7 @@ fun ColumnScope.ContactDetail(
             Icon(
                 KitIcon.Back,
                 contentDescription = null,
-                tint = Palette.OnDark,
+                tint = MaterialTheme.colorScheme.primary,
                 modifier = Modifier.size(Kit.icon),
             )
         }
@@ -111,8 +111,7 @@ fun ColumnScope.ContactDetail(
                         initials,
                         fontSize = 64.sp,
                         fontWeight = FontWeight.Bold,
-                        // White on the avatar circle, like every other one.
-                        color = Palette.OnDark,
+                        color = MaterialTheme.colorScheme.primary,
                     )
                 }
             }

app/src/main/kotlin/io/flamenet/messenger/app/DisplaySection.kt

@@ -62,13 +62,18 @@ fun ColumnScope.DisplaySection() {
         settings.largerType = on; larger = on
     }
 
-    // ⚠️ The Light / Dark / Match-the-phone choice is gone. The palette has one
-    // set of colours now and the app is dark whatever the phone says, so the
-    // control changed nothing a person could see. A setting that is still there
-    // and no longer works is worse than one that was removed — somebody sets
-    // it, nothing happens, and they are left wondering which of the two is
-    // broken. `DisplaySettings.appearance` is left in place so an existing
-    // stored value is not a crash; nothing reads it.
+    Spacer(Modifier.height(Space.sm))
+    Text("Appearance", fontSize = 14.sp)
+    Row(modifier = Modifier.fillMaxWidth().padding(vertical = Space.xs)) {
+        DisplaySettings.Appearance.entries.forEach { option ->
+            KitSecondaryButton(
+                text = if (option == appearance) "✓ ${option.label}" else option.label,
+                onClick = { settings.appearance = option; appearance = option },
+                modifier = Modifier.weight(1f).padding(end = Space.xs),
+                tag = "display-appearance-${option.stored}",
+            )
+        }
+    }
 
     Spacer(Modifier.height(Space.xs))
     // 🔴 Says the thing the label alone cannot: this hides them from you, not
@@ -76,7 +81,8 @@ fun ColumnScope.DisplaySection() {
     Text(
         "These change what this phone shows you. Your contacts are still told when "
             + "you are online whichever way this is set — hiding yourself is not "
-            + "something the app can do yet.",
+            + "something the app can do yet.\n\nAppearance takes effect next time the "
+            + "app starts.",
         fontSize = 12.sp,
         color = Palette.SecondaryText,
     )

app/src/main/kotlin/io/flamenet/messenger/app/FilesScreen.kt

@@ -145,7 +145,6 @@ private fun ColumnScope.FilesSetUp(
     Spacer(Modifier.height(Space.md))
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = passphrase, onValueChange = { passphrase = it },
         label = { Text("Your Flamenet passphrase") },
         visualTransformation = PasswordVisualTransformation(),
@@ -154,7 +153,6 @@ private fun ColumnScope.FilesSetUp(
     )
     Spacer(Modifier.height(Space.sm))
     OutlinedTextField(
-        colors = fieldColors(),
         value = again, onValueChange = { again = it },
         label = { Text("Type it again") },
         visualTransformation = PasswordVisualTransformation(),
@@ -189,7 +187,6 @@ private fun ColumnScope.FilesUnlock(
          fontSize = 14.sp, color = Palette.SecondaryText)
     Spacer(Modifier.height(Space.md))
     OutlinedTextField(
-        colors = fieldColors(),
         value = passphrase, onValueChange = { passphrase = it },
         label = { Text("Passphrase") },
         visualTransformation = PasswordVisualTransformation(),
@@ -455,7 +452,6 @@ private fun ColumnScope.AddFileSheet(
         Text("Add a file", fontWeight = FontWeight.Medium, fontSize = 16.sp)
         Spacer(Modifier.height(Space.sm))
         OutlinedTextField(
-            colors = fieldColors(),
             value = name, onValueChange = { name = it },
             label = { Text("Name") }, singleLine = true,
             modifier = Modifier.fillMaxWidth().testTag("files-add-name"),
@@ -514,7 +510,6 @@ private fun ColumnScope.FolderNameSheet(
         Text("New folder", fontWeight = FontWeight.Medium, fontSize = 16.sp)
         Spacer(Modifier.height(Space.sm))
         OutlinedTextField(
-            colors = fieldColors(),
             value = name, onValueChange = { name = it },
             label = { Text("Name") }, singleLine = true,
             modifier = Modifier.fillMaxWidth().testTag("files-folder-name"),

app/src/main/kotlin/io/flamenet/messenger/app/HistoryBackup.kt

@@ -187,7 +187,6 @@ private fun PassphraseDialog(
                 Text(explainer, fontSize = 12.sp, color = Palette.SecondaryText)
                 Spacer(Modifier.height(Space.sm))
                 OutlinedTextField(
-                    colors = fieldColors(),
                     value = phrase,
                     onValueChange = { phrase = it },
                     placeholder = { Text("Passphrase", fontSize = 14.sp) },
@@ -198,7 +197,6 @@ private fun PassphraseDialog(
                 if (requireRepeat) {
                     Spacer(Modifier.height(Space.xs))
                     OutlinedTextField(
-                        colors = fieldColors(),
                         value = repeat,
                         onValueChange = { repeat = it },
                         placeholder = { Text("Repeat passphrase", fontSize = 14.sp) },

app/src/main/kotlin/io/flamenet/messenger/app/KitButtons.kt

@@ -1,10 +1,6 @@
 package io.flamenet.messenger.app
 
 import androidx.compose.foundation.BorderStroke
-import androidx.compose.foundation.background
-import androidx.compose.ui.draw.alpha
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.height
@@ -56,31 +52,13 @@ fun KitPrimaryButton(
     enabled: Boolean = true,
     tag: String? = null,
 ) {
-    // ⚠️ The gradient goes on the MODIFIER and the Button is transparent.
-    // Compose's Button takes a single container colour, so a gradient painted
-    // inside the content would sit above the ripple and below nothing — it has
-    // to be the surface itself, clipped to the same shape or the corners show
-    // square.
-    //
-    // ⚠️ Disabled fades the whole gradient rather than swapping a flat colour
-    // in: a disabled button that changes shape as well as weight reads as a
-    // different control.
     Button(
         onClick = onClick,
         enabled = enabled,
         shape = RoundedCornerShape(KitButton.radius),
         contentPadding = PaddingValues(horizontal = 16.dp),
-        colors = ButtonDefaults.buttonColors(
-            containerColor = Color.Transparent,
-            disabledContainerColor = Color.Transparent,
-            contentColor = Color.White,
-            disabledContentColor = Color.White,
-        ),
         modifier = modifier
             .height(KitButton.height)
-            .clip(RoundedCornerShape(KitButton.radius))
-            .background(accentBrush(), RoundedCornerShape(KitButton.radius))
-            .alpha(if (enabled) 1f else 0.35f)
             .then(if (tag != null) Modifier.testTag(tag) else Modifier),
     ) {
         Text(text, fontSize = 14.sp, fontWeight = FontWeight.Medium)

app/src/main/kotlin/io/flamenet/messenger/app/MainActivity.kt

@@ -3,8 +3,6 @@ package io.flamenet.messenger.app
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
-import androidx.compose.foundation.Image
-import androidx.compose.ui.res.painterResource
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
@@ -27,7 +25,6 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
-import io.flamenet.messenger.R
 import io.flamenet.messenger.app.MessengerViewModel.Phase.Screen
 import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
@@ -112,27 +109,7 @@ class MainActivity : androidx.fragment.app.FragmentActivity() {
 
         setContent {
             MessengerTheme {
-                // The purple ground, painted once for the whole app. The
-                // Surface itself is transparent so the brush shows through;
-                // Scaffold below is transparent for the same reason, or its
-                // default container colour paints straight over it.
-                Surface(
-                    color = androidx.compose.ui.graphics.Color.Transparent,
-                    // 🔴 **`contentColor` MUST be set when `color` is
-                    // Transparent.** Material derives it with
-                    // `contentColorFor(color)`, which has no answer for
-                    // Transparent and returns Unspecified — so `LocalContentColor`
-                    // falls back to its own default, which is BLACK. Every
-                    // `Text` that does not name a colour of its own then draws
-                    // black on the dark ground.
-                    //
-                    // It looked like "some of the text is hard to read" rather
-                    // than like a broken theme, because the many places that DO
-                    // set a colour were fine and only the inheriting ones went
-                    // dark.
-                    contentColor = Palette.Ink,
-                    modifier = Modifier.fillMaxSize().background(groundBrush()),
-                ) {
+                Surface(modifier = Modifier.fillMaxSize()) {
                     // 🔴 **The gate is around Root, not inside it.** Drawn over
                     // the top, the message list still renders underneath for a
                     // frame — and a frame is all a screenshot or a shoulder
@@ -202,7 +179,7 @@ class MainActivity : androidx.fragment.app.FragmentActivity() {
 @Composable
 private fun Root(model: MessengerViewModel = viewModel()) {
     val phase by model.phase.collectAsStateWithLifecycle()
-    Scaffold(containerColor = androidx.compose.ui.graphics.Color.Transparent) { padding ->
+    Scaffold { padding ->
         val frame = Modifier.fillMaxSize().padding(padding).padding(20.dp)
         when (val current = phase) {
             // Scrollable, because a keyboard over a form needs somewhere to go.
@@ -365,22 +342,15 @@ private fun ColumnScope.SignIn(model: MessengerViewModel, phase: MessengerViewMo
         modifier = Modifier.fillMaxWidth(),
         horizontalAlignment = Alignment.CenterHorizontally,
     ) {
-        // The product's mark. This was an accent-coloured tile with a bold "F"
-        // in it — a placeholder from before there was a logo, and the first
-        // thing anybody sees. iOS carries the same image; see ios!144.
-        //
-        // ⚠️ Clipped to a rounded rectangle, and that is not decoration. The
-        // artwork's background is painted rather than transparent — the space
-        // behind the globe is part of the picture — so an unclipped mark is a
-        // hard-edged dark rectangle on a pale ground. Rounded, it matches the
-        // launcher icon the person just tapped.
-        Image(
-            painter = painterResource(R.drawable.brand_mark),
-            contentDescription = null,
+        Box(
             modifier = Modifier
-                .size(72.dp)
-                .clip(RoundedCornerShape(Radius.medium)),
-        )
+                .size(48.dp)
+                .clip(RoundedCornerShape(Radius.medium))
+                .background(MaterialTheme.colorScheme.primary),
+            contentAlignment = Alignment.Center,
+        ) {
+            Text("F", fontSize = 24.sp, fontWeight = FontWeight.Bold, color = Color.White)
+        }
         Spacer(Modifier.height(Space.lg))
         Text("Hi there!", fontSize = 40.sp, fontWeight = FontWeight.Bold)
         Spacer(Modifier.height(Space.sm))
@@ -395,7 +365,6 @@ private fun ColumnScope.SignIn(model: MessengerViewModel, phase: MessengerViewMo
     Spacer(Modifier.height(Space.xl))
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = relay,
         onValueChange = model::setRelay,
         label = { Text("Server") },
@@ -416,7 +385,6 @@ private fun ColumnScope.SignIn(model: MessengerViewModel, phase: MessengerViewMo
     }
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = handle,
         onValueChange = { handle = it },
         label = { Text("Handle") },
@@ -431,7 +399,6 @@ private fun ColumnScope.SignIn(model: MessengerViewModel, phase: MessengerViewMo
     // would be collecting something nobody needs.
     if (needsEmail) {
         OutlinedTextField(
-            colors = fieldColors(),
             value = email,
             onValueChange = { email = it },
             label = { Text("Email") },
@@ -447,7 +414,6 @@ private fun ColumnScope.SignIn(model: MessengerViewModel, phase: MessengerViewMo
     }
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = passphrase,
         onValueChange = { passphrase = it },
         label = { Text("Passphrase") },
@@ -463,7 +429,6 @@ private fun ColumnScope.SignIn(model: MessengerViewModel, phase: MessengerViewMo
         // this device to refuse an under-13 sign-up, then forgotten. Nothing
         // about age is sent to any server.
         OutlinedTextField(
-            colors = fieldColors(),
             value = birthYear,
             onValueChange = { birthYear = it.filter(Char::isDigit).take(4) },
             label = { Text("Year of birth") },
@@ -574,7 +539,6 @@ private fun ColumnScope.ResetPassword(model: MessengerViewModel, handle: String)
     ) { Text("Send a code") }
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = code,
         onValueChange = { code = it },
         label = { Text("Code from the email") },
@@ -582,7 +546,6 @@ private fun ColumnScope.ResetPassword(model: MessengerViewModel, handle: String)
         modifier = Modifier.fillMaxWidth().testTag("reset-code"),
     )
     OutlinedTextField(
-        colors = fieldColors(),
         value = fresh,
         onValueChange = { fresh = it },
         label = { Text("New password") },
@@ -912,7 +875,7 @@ private fun BarAction(
         Icon(
             icon,
             contentDescription = null,
-            tint = Palette.OnDark,
+            tint = MaterialTheme.colorScheme.primary,
             modifier = Modifier.size(Kit.icon),
         )
     }

app/src/main/kotlin/io/flamenet/messenger/app/MessagesScreen.kt

@@ -76,7 +76,7 @@ fun ColumnScope.MessagesScreen(
         androidx.compose.material3.Icon(
             KitIcon.Scan,
             contentDescription = "Scan an address",
-            tint = Palette.OnDark,
+            tint = Palette.Accent,
             modifier = Modifier
                 .size(24.dp)
                 .clickable {
@@ -92,7 +92,7 @@ fun ColumnScope.MessagesScreen(
         androidx.compose.material3.Icon(
             if (addingContact) KitIcon.Close else KitIcon.Add,
             contentDescription = "Add contact",
-            tint = Palette.OnDark,
+            tint = Palette.Accent,
             modifier = Modifier
                 .size(26.dp)
                 .clickable { addingContact = !addingContact }
@@ -124,7 +124,6 @@ fun ColumnScope.MessagesScreen(
     Spacer(Modifier.height(Space.sm))
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = query.value,
         onValueChange = { query.value = it },
         placeholder = { Text("Search conversations") },
@@ -168,7 +167,7 @@ fun ColumnScope.MessagesScreen(
         androidx.compose.material3.Icon(
             KitIcon.NewChat,
             contentDescription = "New chat",
-            tint = Palette.OnDark,
+            tint = Palette.Accent,
             modifier = Modifier
                 .size(22.dp)
                 .clickable { showNewChat.value = true }

app/src/main/kotlin/io/flamenet/messenger/app/NetworkSection.kt

@@ -148,7 +148,6 @@ fun ColumnScope.NetworkSection(
     Spacer(Modifier.height(Space.md))
 
     OutlinedTextField(
-        colors = fieldColors(),
         value = draft,
         onValueChange = { draft = it },
         placeholder = { Text("obfs4 198.51.100.7:4444 …", fontSize = 13.sp) },

app/src/main/kotlin/io/flamenet/messenger/app/ParentalControlsSection.kt

@@ -56,7 +56,6 @@ fun ParentalControlsSection() {
             )
             Spacer(Modifier.height(Space.sm))
             OutlinedTextField(
-                colors = fieldColors(),
                 value = newPin, onValueChange = { newPin = it },
                 placeholder = { Text("Parent PIN (at least 4 digits)", fontSize = 14.sp) },
                 singleLine = true,
@@ -65,7 +64,6 @@ fun ParentalControlsSection() {
             )
             Spacer(Modifier.height(Space.xs))
             OutlinedTextField(
-                colors = fieldColors(),
                 value = repeatPin, onValueChange = { repeatPin = it },
                 placeholder = { Text("Repeat PIN", fontSize = 14.sp) },
                 singleLine = true,
@@ -88,7 +86,6 @@ fun ParentalControlsSection() {
                  fontSize = 12.sp, color = Palette.SecondaryText)
             Spacer(Modifier.height(Space.sm))
             OutlinedTextField(
-                colors = fieldColors(),
                 value = pinEntry, onValueChange = { pinEntry = it; wrong = false },
                 placeholder = { Text("Parent PIN", fontSize = 14.sp) },
                 singleLine = true,

app/src/main/kotlin/io/flamenet/messenger/app/StoriesFeed.kt

@@ -95,7 +95,7 @@ fun ColumnScope.StoriesFeed(
             Icon(
                 KitIcon.Add,
                 contentDescription = "New story",
-                tint = Palette.OnDark,
+                tint = Palette.Accent,
                 modifier = Modifier
                     .size(28.dp)
                     .clickable { choosing = true }
@@ -357,7 +357,6 @@ private fun StoryActions(
                          + "saw this story can read it.", fontSize = 13.sp)
                     Spacer(Modifier.height(Space.sm))
                     OutlinedTextField(
-                        colors = fieldColors(),
                         value = draft, onValueChange = { draft = it },
                         placeholder = { Text("Message") },
                         modifier = Modifier.fillMaxWidth().testTag("story-reply-field"),
@@ -454,7 +453,6 @@ fun StoryComposerDialog(
                     }
                 }
                 androidx.compose.material3.OutlinedTextField(
-                    colors = fieldColors(),
                     value = caption.value,
                     onValueChange = { caption.value = it },
                     placeholder = { Text("Add a caption…") },
@@ -466,7 +464,6 @@ fun StoryComposerDialog(
                 // §6.13 — attach a live stream. The picked picture becomes its
                 // poster: what people see before deciding whether to connect.
                 androidx.compose.material3.OutlinedTextField(
-                    colors = fieldColors(),
                     value = streamUrl.value,
                     onValueChange = { streamUrl.value = it },
                     label = { Text("Live stream link (optional)", fontSize = 12.sp) },
@@ -709,7 +706,6 @@ private fun TextStoryComposer(onDismiss: () -> Unit, onPost: (String) -> Unit) {
         title = { Text("New story") },
         text = {
             OutlinedTextField(
-                colors = fieldColors(),
                 value = text,
                 onValueChange = { text = it },
                 placeholder = { Text("Say something") },

app/src/main/kotlin/io/flamenet/messenger/app/Theme.kt

@@ -1,5 +1,6 @@
 package io.flamenet.messenger.app
 
+import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.runtime.remember
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.padding
@@ -13,8 +14,6 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.draw.shadow
-import androidx.compose.ui.graphics.Brush
-import androidx.compose.material3.OutlinedTextFieldDefaults
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
@@ -52,164 +51,35 @@ object Palette {
     // brand when this app was written and is not any more — the public pages
     // carry none of it — so the names go with the colour rather than outliving
     // it. A constant called `Ember` holding blue is how a palette drifts back.
-    val Accent = Color(0xFF7A3FF2)      // buttons, bubbles, links
-    val AccentBright = Color(0xFFB99BFF) // links and small text on the dark ground
-    val AccentDeep = Color(0xFFB99BFF)   // links and small text
-    val AccentSoft = Color(0x1A7A3FF2)
+    val Accent = Color(0xFF2298FF)      // buttons, bubbles, links
+    val AccentBright = Color(0xFF4FACFE) // the kit's lighter primary swatch
+    val AccentSoft = Color(0x1A2298FF)
 
-    // The gradient.
-    //
-    // 🔴 **The LIGHT end is the one that has to carry the label.** A gradient
-    // button is only as readable as its lightest stop, and checking the mean
-    // or the dark end is how a pretty button ships unreadable. Measured with
-    // white text: #7A3FF2 is 5.50:1 and #5B27C7 is 8.20:1, so the label clears
-    // AA along the whole sweep rather than at one end of it.
-    val GradientTop = Color(0xFF7A3FF2)
-    val GradientBottom = Color(0xFF5B27C7)
-
-    // The page ground, as a gradient rather than a flat fill.
-    //
-    // Purple at the top, medium blue at the bottom — top down.
-    //
-    // ⚠️ The blue end is not decoration. The mark is a blue globe with an
-    // orange flame, and a purple-only app left the icon as the odd one out;
-    // shading into blue puts the icon's own colour on the page instead of
-    // beside it.
-    //
-    // 🔴 Every darkening step drags SecondaryText with it. Ink reads 12.3:1 at
-    // the top and 8.4:1 at the bottom, secondary text 8.1:1 and 5.5:1 — the
-    // bottom stop binds, and it is where most of the explanatory copy sits.
-    // White cards lift off the bottom at 2.4:1, which keeps a card a card.
-    val GroundTop = Color(0xFF3A1E9E)     // purple
-    val GroundMid = Color(0xFF0B3080)     // blue
-    val GroundBottom = Color(0xFF070A1A)  // black
-    // Kept as the same two colours: there is one theme now.
-    val NightGroundTop = Color(0xFF3A1E9E)
-    val NightGroundBottom = Color(0xFF070A1A)
-
-    val Teal = Color(0xFF4BE3C0)   // success and presence
-    val Pink = Color(0xFFFF819F)   // the kit's alert accent
+    val Teal = Color(0xFF3BD5B2)   // success and presence
+    val Pink = Color(0xFFED497C)   // the kit's alert accent
 
     // Neutrals, all from the kit.
-    val Ink = Color(0xFFEDEFF9)
-    // ⚠️ Still needed where a gradient cannot go (a single Color parameter, a
-    // system bar tint). This is the gradient's mid-tone, so the two never read
-    // as different surfaces.
-    val Mist = Color(0xFF191D68)        // the page ground, flat
-    val SurfaceAlt = Color(0xFF1E2A70)  // received bubbles, pills, bands
-    val IncomingBubble = Color(0xFF1E2A70)
+    val Ink = Color(0xFF090710)
+    val Mist = Color(0xFFF9F9F9)        // the page ground
+    val SurfaceAlt = Color(0xFFF3F3F3)  // received bubbles, pills, bands
+    val IncomingBubble = Color(0xFFF3F3F3)
     // ⚠️ A blue-tinted grey rather than the flat #F3F3F3: an initials avatar
     // needs to read as a circle against the surface behind it, and two greys a
     // shade apart do not.
-    // Icons and initials drawn ON a dark surface.
-    //
-    // 🔴 White, not the accent. The accent is a mid purple chosen to be
-    // readable as a FILL with white on top of it. Used as the ink for a glyph
-    // on a dark ground it is the wrong way round — a light purple mark on a
-    // dark blue field, the least legible thing on the screen, and it reads as
-    // a disabled control rather than a button.
-    //
-    // ⚠️ The accent still fills: primary buttons, the selected tab, badges.
-    val OnDark = Color(0xFFFFFFFF)
-
-    val AvatarFill = Color(0xFF243480)
-    // 🔴 **Darkened with the ground, not left behind it.** #505C69 read 5.0:1
-    // on the old bottom stop and only 3.5:1 on the darker one — below AA, and
-    // most of the explanatory copy on these screens is set in it. Measured now:
-    // 8.4:1 at the top of the gradient, 5.6:1 at the bottom.
-    // 🔴 **A mid-tone again, and that is the point of the flip.** On the light
-    // ground this had darkened at every step until it was #1B1822 — almost the
-    // same colour as Ink — so the hierarchy between primary and secondary text
-    // had collapsed while the contrast numbers still passed. On a dark ground
-    // it sits in the middle where it belongs: 7.3:1 on the ground, 5.7:1 on a
-    // card, 4.7:1 on a field.
-    val SecondaryText = Color(0xFFB4BAD4)
-    // One theme now, so one secondary. Kept as an alias so the dark
-    // colour scheme below still reads clearly.
-    val SecondaryTextDark = Color(0xFFB4BAD4)
-    val Divider = Color(0x2EB4BAD4)
+    val AvatarFill = Color(0xFFE8F1FB)
+    val SecondaryText = Color(0xFF505C69)
+    val Divider = Color(0x1A505C69)
 
     // Semantic
-    val Success = Color(0xFF4BE3C0)
-    val Warning = Color(0xFFE9B44C)
-    val Danger = Color(0xFFFF819F)
+    val Success = Color(0xFF3BD5B2)
+    val Warning = Color(0xFFB8860B)
+    val Danger = Color(0xFFED497C)
 
     // Dark-mode grounds — these ARE the site's, since the site is dark.
-    // 🔴 Darker than the ground, not lighter. The ground is vivid here, and a
-    // card lighter than a saturated violet has to be lighter still than that,
-    // which puts secondary text below AA on it. Recessed panels invert the
-    // problem: the gradient is the bright thing, content sits in dark wells.
-    // 🔴 One card colour against a THREE-stop ground, so it must lift off all
-    // three. #0E1745 looked right against the purple and the blue and measured
-    // 1.15:1 against the black end — a card that disappears at the bottom of a
-    // long screen. This lifts 1.41 / 1.33 / 1.23.
-    val InkSurface = Color(0xFF141C52)   // --panel
-    val NightGround = Color(0xFF191D68)  // --bg, the gradient's mid-tone
+    val InkSurface = Color(0xFF121A2E)   // --panel
+    val NightGround = Color(0xFF0A0E1A)  // --bg
 }
 
-/**
- * The app's ground.
- *
- * ⚠️ One brush for the whole app rather than a fill per screen: a gradient
- * applied per screen is a gradient that restarts at every navigation, which
- * reads as the background flickering.
- */
-@Composable
-fun groundBrush(): Brush =
-    // One theme, so no branch. The Night* pair is kept pointing at the same two
-    // colours rather than deleted, because several screens name it directly and
-    // a rename across both apps is a separate change.
-    Brush.verticalGradient(
-        listOf(Palette.GroundTop, Palette.GroundMid, Palette.GroundBottom))
-
-/** The primary action's fill. Matches `Theme.primaryGradient*` on iOS. */
-fun accentBrush(): Brush =
-    Brush.verticalGradient(listOf(Palette.GradientTop, Palette.GradientBottom))
-
-/**
- * Text fields, and only text fields.
- *
- * 🔴 **White, on a dark app, deliberately.** An input is the one surface a
- * person types into and reads back character by character, and a dark field on
- * a dark ground gives it the least contrast on the screen at the moment it
- * matters most. Typed text reads 18.3:1 on white; the placeholder 4.6:1,
- * because a placeholder is still text. Matches `Theme.fieldFill` on iOS.
- *
- * ⚠️ **Not `SurfaceAlt`.** That fill is shared with incoming bubbles and the
- * tab pill, which stay dark — a white message bubble on this ground would read
- * as somebody else's app.
- *
- * ⚠️ Every colour a field draws has to be named, not just the container.
- * Material derives label, placeholder, cursor and outline from the colour
- * scheme, which is the DARK scheme here — leaving any of them unset puts a
- * light-on-dark colour on a white box, and the placeholder simply disappears.
- */
-object FieldPalette {
-    val fill = Color(0xFFFFFFFF)
-    val ink = Color(0xFF0E1230)
-    val hint = Color(0xFF6B7590)
-}
-
-@Composable
-fun fieldColors() = OutlinedTextFieldDefaults.colors(
-    focusedContainerColor = FieldPalette.fill,
-    unfocusedContainerColor = FieldPalette.fill,
-    disabledContainerColor = FieldPalette.fill,
-    errorContainerColor = FieldPalette.fill,
-    focusedTextColor = FieldPalette.ink,
-    unfocusedTextColor = FieldPalette.ink,
-    disabledTextColor = FieldPalette.hint,
-    errorTextColor = FieldPalette.ink,
-    focusedLabelColor = FieldPalette.hint,
-    unfocusedLabelColor = FieldPalette.hint,
-    disabledLabelColor = FieldPalette.hint,
-    focusedPlaceholderColor = FieldPalette.hint,
-    unfocusedPlaceholderColor = FieldPalette.hint,
-    cursorColor = Palette.Accent,
-    focusedBorderColor = Palette.Accent,
-    unfocusedBorderColor = FieldPalette.hint,
-)
-
 /** Corner radii, matching `Theme.Radius` on iOS. */
 object Radius {
     val small = 10.dp
@@ -322,31 +192,53 @@ fun Modifier.flamenetCard(
 
 @Composable
 fun MessengerTheme(content: @Composable () -> Unit) {
-    // 🔴 **One theme, and it is dark.** There used to be a light scheme, a dark
-    // one, and a preference choosing between them. The palette has a single set
-    // of colours now, so the light branch would have drawn light-mode Material
-    // chrome under dark-mode artwork — and the preference would have been a
-    // control that changes nothing a person can see except the parts that
-    // break.
-    //
-    // ⚠️ `onBackground`/`onSurface` are `Ink`, not `Mist`. `Mist` is the
-    // ground now; using it as a text colour on that ground is dark-on-dark,
-    // which is exactly the kind of swap that survives a rename.
+    // ⚠️ Read here rather than passed in, so every entry point picks it up —
+    // the app has more than one, and a theme applied at only some of them is
+    // the kind of half-wiring that looks fine until somebody opens a call
+    // screen from a notification.
+    val context = androidx.compose.ui.platform.LocalContext.current
+    val preference = remember { DisplaySettings(context).appearance }
+    val dark = when (preference) {
+        DisplaySettings.Appearance.LIGHT -> false
+        DisplaySettings.Appearance.DARK -> true
+        DisplaySettings.Appearance.SYSTEM -> isSystemInDarkTheme()
+    }
     MaterialTheme(
-        colorScheme = darkColorScheme(
-            primary = Palette.Accent,
-            onPrimary = Color.White,
-            secondary = Palette.AccentDeep,
-            background = Palette.Mist,
-            surface = Palette.InkSurface,
-            surfaceVariant = Palette.SurfaceAlt,
-            onBackground = Palette.Ink,
-            onSurface = Palette.Ink,
-            onSurfaceVariant = Palette.SecondaryText,
-            error = Palette.Danger,
-            outline = Palette.Divider,
-        ),
-        typography = MaterialTheme.typography,
+        colorScheme = if (dark) {
+            darkColorScheme(
+                primary = Palette.AccentBright,
+                onPrimary = Color.White,
+                secondary = Palette.Accent,
+                background = Palette.NightGround,
+                surface = Palette.InkSurface,
+                surfaceVariant = Palette.InkSurface,
+                onBackground = Palette.Mist,
+                onSurface = Palette.Mist,
+                onSurfaceVariant = Palette.SecondaryText,
+                error = Palette.Danger,
+                outline = Palette.Divider,
+            )
+        } else {
+            lightColorScheme(
+                // ⚠️ The kit's #2298FF on white is about 3.3:1 — fine for a
+                // bold button label, not for small text. Anything small and
+                // blue must use a darker step; the two places that do are the
+                // section labels and the timestamps, and both are grey.
+                primary = Palette.Accent,
+                onPrimary = Color.White,
+                secondary = Palette.AccentBright,
+                background = Palette.Mist,
+                surface = Color.White,
+                surfaceVariant = Palette.SurfaceAlt,
+                onBackground = Palette.Ink,
+                onSurface = Palette.Ink,
+                onSurfaceVariant = Palette.SecondaryText,
+                error = Palette.Danger,
+                outline = Palette.Divider,
+            )
+        },
+        shapes = FlamenetShapes,
+        typography = FlamenetTypography,
         content = content,
     )
 }

app/src/main/kotlin/io/flamenet/messenger/app/WalletScreen.kt

@@ -129,7 +129,6 @@ private fun ColumnScope.NoWallet(model: MessengerViewModel) {
         Text("Already have one?", fontWeight = FontWeight.Medium, fontSize = 16.sp)
         Spacer(Modifier.height(Space.xs))
         OutlinedTextField(
-            colors = fieldColors(),
             value = phrase,
             onValueChange = { phrase = it },
             placeholder = { Text("Your 12 or 24 word recovery phrase", fontSize = 13.sp) },

app/src/test/kotlin/io/flamenet/messenger/app/PaletteMatchesIOSTest.kt

@@ -1,146 +0,0 @@
-package io.flamenet.messenger.app
-
-import java.io.File
-import kotlin.test.Test
-import kotlin.test.assertEquals
-import kotlin.test.assertTrue
-
-/**
- * The two apps' palettes, checked rather than claimed.
- *
- * 🔴 **`Theme.swift` opens with "One palette, two apps… change a value here and
- * change it there in the same commit" — and nothing enforced it.** Its own
- * comment records what happened last time: the file claimed the two were
- * matched while iOS was indigo and Android was ember. A promise in a comment is
- * a promise nobody keeps, because nothing goes red when it is broken.
- *
- * This reads the iOS source and compares the hex values. It is coarse on
- * purpose — it does not know what a colour means, only that both files say the
- * same number for it.
- *
- * ⚠️ It needs the iOS checkout beside this one. When it is missing the test
- * SKIPS rather than fails: a green suite on a machine that only has Android is
- * the honest outcome, and a red one there would train people to ignore it.
- */
-class PaletteMatchesIOSTest {
-
-    private val iosTheme: File? =
-        listOf(
-            File("../flamenetmessenger/Sources/Theme/Theme.swift"),
-            File("../../flamenetmessenger/Sources/Theme/Theme.swift"),
-        ).firstOrNull { it.isFile }
-
-    /** `static let name = Color(hex: 0xRRGGBB)` and the light/dark pair form. */
-    private fun iosHex(source: String, name: String): String? {
-        val flat = Regex("""static let $name\s*=\s*Color\(hex:\s*0x([0-9A-Fa-f]{6})\)""")
-            .find(source)?.groupValues?.get(1)
-        if (flat != null) return flat.uppercase()
-        return Regex("""static let $name\s*=\s*Color\(light:\s*0x([0-9A-Fa-f]{6})""")
-            .find(source)?.groupValues?.get(1)?.uppercase()
-    }
-
-    private fun androidHex(color: androidx.compose.ui.graphics.Color): String =
-        "%02X%02X%02X".format(
-            (color.red * 255).toInt(), (color.green * 255).toInt(), (color.blue * 255).toInt())
-
-    @Test
-    fun `the accent and its gradient are the same on both platforms`() {
-        val ios = iosTheme?.readText() ?: return
-        for ((swift, android) in listOf(
-            "primary" to Palette.Accent,
-            "primaryGradientTop" to Palette.GradientTop,
-            "primaryGradientBottom" to Palette.GradientBottom,
-            "primaryDeep" to Palette.AccentDeep,
-        )) {
-            val expected = iosHex(ios, swift)
-            assertTrue(expected != null, "iOS Theme.swift has no `$swift` in a form this can read")
-            assertEquals(expected, androidHex(android),
-                "$swift differs: iOS says $expected, Android says ${androidHex(android)}")
-        }
-    }
-
-    /**
-     * 🔴 The half that decides whether the app is readable. A gradient button is
-     * only as readable as its LIGHTEST stop, and both platforms draw white on
-     * it.
-     */
-    @Test
-    fun `white text clears AA on the lightest end of the button gradient`() {
-        val ratio = contrast(Palette.GradientTop, androidx.compose.ui.graphics.Color.White)
-        assertTrue(ratio >= 4.5,
-            "white on the gradient's light end is %.2f:1 — below AA for normal text".format(ratio))
-    }
-
-    /**
-     * 🔴 **One theme now, so one set of grounds — and every surface a person
-     * reads text on has to clear AA, not just the page.**
-     *
-     * The light theme is gone (2026-09-07). It went because the ground kept
-     * being asked to go darker and `secondaryText` had to darken with it at
-     * every step, until it was #1B1822 against ink at #090710: contrast passing
-     * while the hierarchy between primary and secondary text quietly vanished.
-     * A dark ground puts secondary back in the middle where it belongs.
-     *
-     * ⚠️ Cards and field fills are checked as well as the page. A gradient that
-     * passes and a bubble that does not is still an unreadable app, and the
-     * bubble is where the messages are.
-     */
-    @Test
-    fun `text clears AA on every surface it is read on`() {
-        val surfaces = listOf(
-            "ground top (purple)" to Palette.GroundTop,
-            // ⚠️ The middle stop is a surface too. A three-stop gradient
-            // checked only at its ends is two thirds measured.
-            "ground middle (blue)" to Palette.GroundMid,
-            "ground bottom (black)" to Palette.GroundBottom,
-            "card" to Palette.InkSurface,
-            "field and incoming bubble" to Palette.SurfaceAlt,
-            "avatar" to Palette.AvatarFill,
-        )
-        for ((name, ground) in surfaces) {
-            val ink = contrast(ground, Palette.Ink)
-            assertTrue(ink >= 4.5, "ink on the $name is %.2f:1".format(ink))
-            // Secondary is the one that fails first — most of the explanatory
-            // copy on these screens is set in it.
-            val muted = contrast(ground, Palette.SecondaryText)
-            assertTrue(muted >= 4.5, "secondary text on the $name is %.2f:1".format(muted))
-        }
-    }
-
-    /**
-     * ⚠️ A card has to be visibly a card. Contrast rules say nothing about
-     * this, and a surface that matches its ground is a layout people cannot
-     * parse even though every text ratio passes.
-     */
-    @Test
-    fun `cards and fields lift off what is behind them`() {
-        // 🔴 Against ALL THREE stops. One card colour has to survive the whole
-        // sweep, and the black end is the one it fails on.
-        for ((name, stop) in listOf("purple" to Palette.GroundTop,
-                                    "blue" to Palette.GroundMid,
-                                    "black" to Palette.GroundBottom)) {
-            val lift = contrast(Palette.InkSurface, stop)
-            assertTrue(lift >= 1.15,
-                "a card lifts off the $name end of the ground by only %.2f:1".format(lift))
-        }
-        val fieldLift = contrast(Palette.SurfaceAlt, Palette.InkSurface)
-        assertTrue(fieldLift >= 1.15, "a field lifts off its card by only %.2f:1".format(fieldLift))
-    }
-
-    private fun channel(c: Float): Double {
-        val v = c.toDouble()
-        return if (v <= 0.04045) v / 12.92 else Math.pow((v + 0.055) / 1.055, 2.4)
-    }
-
-    private fun luminance(c: androidx.compose.ui.graphics.Color): Double =
-        0.2126 * channel(c.red) + 0.7152 * channel(c.green) + 0.0722 * channel(c.blue)
-
-    private fun contrast(
-        a: androidx.compose.ui.graphics.Color,
-        b: androidx.compose.ui.graphics.Color,
-    ): Double {
-        val la = luminance(a)
-        val lb = luminance(b)
-        return (maxOf(la, lb) + 0.05) / (minOf(la, lb) + 0.05)
-    }
-}