Updated on 2026-08-14

core/ui/src/main/java/com/tangem/core/ui/res/TangemTheme.kt

@@ -107,7 +107,7 @@ fun TangemTheme(
             CompositionLocalProvider(
                 LocalTangemShimmer provides TangemShimmer,
                 LocalMainBottomSheetColor provides remember { mutableStateOf(Color.Unspecified) },
-                LocalRootBackgroundColor provides remember { mutableStateOf(rootBackgroundColor) },
+                LocalRootBackgroundColor provides remember(rootBackgroundColor) { mutableStateOf(rootBackgroundColor) },
                 LocalTextSelectionColors provides TangemTextSelectionColors,
             ) {
                 ProvideTextStyle(

core/ui/src/main/java/com/tangem/core/ui/utils/TangemThemeUtils.kt

@@ -0,0 +1,31 @@
+package com.tangem.core.ui.utils
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.graphics.Color
+import com.tangem.core.ui.res.LocalRootBackgroundColor
+
+@Composable
+fun ChangeRootBackgroundColorEffect(color: Color) {
+    var rootBackgroundColor by LocalRootBackgroundColor.current
+    var previousColor by remember { mutableStateOf(rootBackgroundColor) }
+
+    DisposableEffect(color) {
+        rootBackgroundColor = color
+        onDispose {
+            rootBackgroundColor = previousColor
+        }
+    }
+
+    LaunchedEffect(rootBackgroundColor) {
+        if (rootBackgroundColor != color) {
+            previousColor = rootBackgroundColor
+            rootBackgroundColor = color
+        }
+    }
+}