Fix color for media viewer according to Figma.

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/local/player/MediaPlayerControllerView.kt

@@ -26,7 +26,6 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.PreviewParameter
@@ -40,6 +39,7 @@ import io.element.android.libraries.designsystem.theme.components.Icon
 import io.element.android.libraries.designsystem.theme.components.IconButton
 import io.element.android.libraries.designsystem.theme.components.Slider
 import io.element.android.libraries.designsystem.theme.components.Text
+import io.element.android.libraries.mediaviewer.impl.util.bgCanvasWithTransparency
 import io.element.android.libraries.ui.strings.CommonStrings
 
 @Composable
@@ -58,7 +58,7 @@ fun MediaPlayerControllerView(
     ) {
         Box(
             modifier = Modifier
-                .background(color = Color(0x99101317))
+                .background(color = bgCanvasWithTransparency)
                 .padding(horizontal = 8.dp, vertical = 4.dp),
             contentAlignment = Alignment.Center,
         ) {

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/util/Colors.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.mediaviewer.impl.util
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+import io.element.android.compound.theme.ElementTheme
+
+val bgCanvasWithTransparency: Color
+    @Composable
+    get() = ElementTheme.colors.bgCanvasDefault.copy(alpha = 0.6f)

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/viewer/MediaViewerFlickToDismiss.kt

@@ -16,6 +16,7 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import io.element.android.compound.theme.ElementTheme
 import kotlinx.coroutines.delay
 import me.saket.telephoto.flick.FlickToDismiss
 import me.saket.telephoto.flick.FlickToDismissState
@@ -90,5 +91,5 @@ private fun backgroundColorFor(flickState: FlickToDismissState): Color {
         },
         label = "Background alpha",
     )
-    return Color.Black.copy(alpha = animatedAlpha)
+    return ElementTheme.colors.bgCanvasDefault.copy(alpha = animatedAlpha)
 }

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/viewer/MediaViewerView.kt

@@ -78,6 +78,7 @@ import io.element.android.libraries.mediaviewer.impl.details.MediaDetailsBottomS
 import io.element.android.libraries.mediaviewer.impl.local.LocalMediaView
 import io.element.android.libraries.mediaviewer.impl.local.PlayableState
 import io.element.android.libraries.mediaviewer.impl.local.rememberLocalMediaViewState
+import io.element.android.libraries.mediaviewer.impl.util.bgCanvasWithTransparency
 import io.element.android.libraries.ui.strings.CommonStrings
 import kotlinx.coroutines.delay
 import me.saket.telephoto.zoomable.ZoomSpec
@@ -209,7 +210,7 @@ fun MediaViewerView(
                                 }
                             },
                             colors = TopAppBarDefaults.topAppBarColors(
-                                containerColor = Color.Black.copy(alpha = 0.6f),
+                                containerColor = bgCanvasWithTransparency,
                             ),
                             navigationIcon = { BackButton(onClick = onBackClick) },
                         )
@@ -455,7 +456,7 @@ private fun MediaViewerTopBar(
             }
         },
         colors = TopAppBarDefaults.topAppBarColors(
-            containerColor = Color.Black.copy(alpha = 0.6f),
+            containerColor = bgCanvasWithTransparency,
         ),
         navigationIcon = { BackButton(onClick = onBackClick) },
         actions = {
@@ -501,7 +502,7 @@ private fun MediaViewerBottomBar(
     Column(
         modifier = modifier
             .fillMaxWidth()
-            .background(Color(0x99101317))
+            .background(bgCanvasWithTransparency)
             .onSizeChanged {
                 onHeightChange(it.height)
             },