feat(tips): gate frosted tip card behind a beta flag

apps/flipcash/features/scanner/src/main/kotlin/com/flipcash/app/scanner/internal/bills/ScannableContainer.kt

@@ -44,6 +44,8 @@ import com.flipcash.app.bills.components.cards.LocalTipCardBackdrop
 import com.flipcash.app.bills.components.cards.LocalTipCardBaseAlpha
 import com.flipcash.app.bills.components.cards.LocalTipCardColor
 import com.flipcash.app.bills.components.cards.TipCardOpaqueFallback
+import com.flipcash.app.featureflags.FeatureFlag
+import com.flipcash.app.featureflags.LocalFeatureFlags
 import com.flipcash.app.core.android.extensions.launchAppSettings
 import com.flipcash.app.core.bill.Scannable
 import com.flipcash.app.core.tipping.LocalTipCoordinator
@@ -128,10 +130,15 @@ internal fun ScannableContainer(
     // The frosted camera backdrop snapshots the feed (a GPU→CPU readback). Gate it to devices that
     // can absorb that — API 31+ for the blur, and not low-RAM. Everywhere else the card falls back
     // to an opaque approximation of the frosted tone.
-    val supportsFrostedTipCard = remember {
+    val deviceSupportsFrostedTipCard = remember {
         Build.VERSION.SDK_INT >= Build.VERSION_CODES.S &&
             context.getSystemService(ActivityManager::class.java)?.isLowRamDevice != true
     }
+    // Also gated behind a beta flag (off by default); the opaque fallback is used when it's disabled.
+    val frostedTipCardFlagEnabled by LocalFeatureFlags.current
+        .observe(FeatureFlag.FrostedTipCard)
+        .collectAsStateWithLifecycle()
+    val frostedTipCardEnabled = deviceSupportsFrostedTipCard && frostedTipCardFlagEnabled
 
     OnLifecycleEvent { _, event ->
         if (event == Lifecycle.Event.ON_STOP && !autoStart) {
@@ -292,18 +299,19 @@ internal fun ScannableContainer(
         val isTipCard = updatedBillState.bill is Scannable.TipCard
         val tipCardBackdrop = rememberCameraTipCardBackdrop(
             previewView = previewView,
-            enabled = isTipCard && supportsFrostedTipCard,
+            enabled = isTipCard && frostedTipCardEnabled,
             containerOriginInWindow = containerOriginInWindow,
         )
 
-        // Where the frosted backdrop is unavailable, render the tip card as an opaque approximation
-        // of the frosted tone instead of a translucent panel over the (stutter-prone) live camera.
-        val useOpaqueFallback = isTipCard && !supportsFrostedTipCard
+        // Where the frosted backdrop is unavailable (incapable device or the beta flag is off),
+        // render the tip card as an opaque approximation of the frosted tone instead of a
+        // translucent panel over the (stutter-prone) live camera.
+        val useOpaqueFallback = isTipCard && !frostedTipCardEnabled
 
         CompositionLocalProvider(
             LocalTipCardBackdrop provides tipCardBackdrop,
             LocalTipCardColor provides if (useOpaqueFallback) TipCardOpaqueFallback else Color.Unspecified,
-            LocalTipCardBaseAlpha provides if (useOpaqueFallback) 1f else LocalTipCardBaseAlpha.current,
+            LocalTipCardBaseAlpha provides if (useOpaqueFallback) 1f else 0.45f,
         ) {
             AnimatedScannable(
                 modifier = Modifier.fillMaxSize(),

apps/flipcash/shared/bills/src/main/kotlin/com/flipcash/app/bills/components/cards/TipCard.kt

@@ -55,7 +55,7 @@ val LocalTipCardBackdrop = staticCompositionLocalOf<(@Composable BoxScope.() ->
 
 
 /** Blur radius used for the card's backdrop, tuned to read like the design's 40px background blur. */
-val TipCardBlurRadius: Dp = 24.dp
+val TipCardBlurRadius: Dp = 16.dp
 
 /**
  * Base tint color for the card. Defaults to the theme's tip-card color; overridden on the opaque

apps/flipcash/shared/featureflags/src/main/kotlin/com/flipcash/app/featureflags/FeatureFlag.kt

@@ -267,6 +267,16 @@ sealed interface FeatureFlag<T: Any> {
         override val minTrack: FeatureTrack = FeatureTrack.Production
     }
 
+    @FeatureFlagMarker
+    data object FrostedTipCard: FeatureFlag<Boolean> {
+        override val key: String = "frosted_tip_card_enabled"
+        override val default: Boolean = false
+        override val launched: Boolean = false
+        override val visible: Boolean = true
+        override val persistLogOut: Boolean = false
+        override val minTrack: FeatureTrack = FeatureTrack.Beta
+    }
+
     companion object {
         val entries: List<FeatureFlag<*>>
             get() = FeatureFlagEntries.entries
@@ -305,6 +315,7 @@ val FeatureFlag<*>.title: String
         FeatureFlag.AddMoneyUX -> "Add Money UX"
         FeatureFlag.ShowNetworkState -> "Network Offline Indicator"
         FeatureFlag.Tipping -> "Tipping"
+        FeatureFlag.FrostedTipCard -> "Frosted Tip Card"
     }
 
 val FeatureFlag<*>.message: String
@@ -334,6 +345,7 @@ val FeatureFlag<*>.message: String
         FeatureFlag.AddMoneyUX -> "When enabled, the user experience for getting money into the app will be focused around 'Adding Money'"
         FeatureFlag.ShowNetworkState -> "When enabled, you'll gain the ability to see the network state on the Scanner when offline"
         FeatureFlag.Tipping -> "When enabled, you'll gain the ability to tip other users and set up your own tip card to receive tips"
+        FeatureFlag.FrostedTipCard -> "When enabled, the tip card in the scanner renders as frosted glass over a blurred snapshot of the camera instead of a solid card"
     }