Deduplicate and improve Scrollbar theme

app/src/main/java/org/schabi/newpipe/ui/components/common/Scrollbar.kt

@@ -0,0 +1,30 @@
+package org.schabi.newpipe.ui.components.common
+
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import my.nanihadesuka.compose.ScrollbarSettings
+
+@Composable
+fun defaultThemedScrollbarSettings(): ScrollbarSettings = ScrollbarSettings.Default.copy(
+    thumbUnselectedColor = MaterialTheme.colorScheme.primary,
+    thumbSelectedColor = MaterialTheme.colorScheme.primary.copy(alpha = 0.75f),
+)
+
+@Composable
+fun LazyColumnThemedScrollbar(
+    state: LazyListState,
+    modifier: Modifier = Modifier,
+    settings: ScrollbarSettings = defaultThemedScrollbarSettings(),
+    indicatorContent: (@Composable (index: Int, isThumbSelected: Boolean) -> Unit)? = null,
+    content: @Composable () -> Unit
+) {
+    my.nanihadesuka.compose.LazyColumnScrollbar(
+        state = state,
+        modifier = modifier,
+        settings = settings,
+        indicatorContent = indicatorContent,
+        content = content,
+    )
+}

app/src/main/java/org/schabi/newpipe/ui/components/items/ItemList.kt

@@ -10,24 +10,21 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.rememberNestedScrollInteropConnection
 import androidx.compose.ui.res.stringResource
 import androidx.preference.PreferenceManager
 import androidx.window.core.layout.WindowWidthSizeClass
-import my.nanihadesuka.compose.LazyColumnScrollbar
-import my.nanihadesuka.compose.ScrollbarSettings
 import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.InfoItem
 import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.info_list.ItemViewMode
 import org.schabi.newpipe.ktx.findFragmentActivity
+import org.schabi.newpipe.ui.components.common.LazyColumnThemedScrollbar
 import org.schabi.newpipe.ui.components.items.playlist.PlaylistListItem
 import org.schabi.newpipe.ui.components.items.stream.StreamListItem
-import org.schabi.newpipe.ui.theme.md_theme_dark_primary
 import org.schabi.newpipe.util.DependentPreferenceHelper
 import org.schabi.newpipe.util.NavigationHelper
 
@@ -75,13 +72,7 @@ fun ItemList(
     } else {
         val state = rememberLazyListState()
 
-        LazyColumnScrollbar(
+        LazyColumnThemedScrollbar(state = state) {
-            state = state,
-            settings = ScrollbarSettings.Default.copy(
-                thumbSelectedColor = md_theme_dark_primary,
-                thumbUnselectedColor = Color.Red
-            )
-        ) {
             LazyColumn(modifier = nestedScrollModifier, state = state) {
                 listHeader()
 

app/src/main/java/org/schabi/newpipe/ui/components/video/comment/CommentRepliesDialog.kt

@@ -17,7 +17,6 @@ import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.rememberNestedScrollInteropConnection
 import androidx.compose.ui.res.pluralStringResource
@@ -33,16 +32,14 @@ import androidx.paging.compose.collectAsLazyPagingItems
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.launch
-import my.nanihadesuka.compose.LazyColumnScrollbar
-import my.nanihadesuka.compose.ScrollbarSettings
 import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.comments.CommentsInfoItem
 import org.schabi.newpipe.extractor.stream.Description
 import org.schabi.newpipe.paging.CommentRepliesSource
+import org.schabi.newpipe.ui.components.common.LazyColumnThemedScrollbar
 import org.schabi.newpipe.ui.components.common.LoadingIndicator
 import org.schabi.newpipe.ui.components.common.NoItemsMessage
 import org.schabi.newpipe.ui.theme.AppTheme
-import org.schabi.newpipe.ui.theme.md_theme_dark_primary
 
 @Composable
 fun CommentRepliesDialog(
@@ -94,13 +91,7 @@ private fun CommentRepliesDialog(
             // content color for MaterialTheme.colorScheme.background instead
             LocalContentColor provides contentColorFor(MaterialTheme.colorScheme.background)
         ) {
-            LazyColumnScrollbar(
+            LazyColumnThemedScrollbar(state = listState) {
-                state = listState,
-                settings = ScrollbarSettings.Default.copy(
-                    thumbSelectedColor = md_theme_dark_primary,
-                    thumbUnselectedColor = Color.Red
-                )
-            ) {
                 LazyColumn(
                     modifier = Modifier.nestedScroll(nestedScrollInterop),
                     state = listState

app/src/main/java/org/schabi/newpipe/ui/components/video/comment/CommentSection.kt

@@ -10,7 +10,6 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.rememberNestedScrollInteropConnection
 import androidx.compose.ui.res.pluralStringResource
@@ -23,16 +22,14 @@ import androidx.paging.PagingData
 import androidx.paging.compose.collectAsLazyPagingItems
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flowOf
-import my.nanihadesuka.compose.LazyColumnScrollbar
-import my.nanihadesuka.compose.ScrollbarSettings
 import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.Page
 import org.schabi.newpipe.extractor.comments.CommentsInfoItem
 import org.schabi.newpipe.extractor.stream.Description
+import org.schabi.newpipe.ui.components.common.LazyColumnThemedScrollbar
 import org.schabi.newpipe.ui.components.common.LoadingIndicator
 import org.schabi.newpipe.ui.components.common.NoItemsMessage
 import org.schabi.newpipe.ui.theme.AppTheme
-import org.schabi.newpipe.ui.theme.md_theme_dark_primary
 import org.schabi.newpipe.viewmodels.CommentsViewModel
 import org.schabi.newpipe.viewmodels.util.Resource
 
@@ -52,13 +49,7 @@ private fun CommentSection(
     val state = rememberLazyListState()
 
     Surface(color = MaterialTheme.colorScheme.background) {
-        LazyColumnScrollbar(
+        LazyColumnThemedScrollbar(state = state) {
-            state = state,
-            settings = ScrollbarSettings.Default.copy(
-                thumbSelectedColor = md_theme_dark_primary,
-                thumbUnselectedColor = Color.Red
-            )
-        ) {
             LazyColumn(
                 modifier = Modifier.nestedScroll(nestedScrollInterop),
                 state = state