xnext button look fix

GitOrigin-RevId: dec0074a01298fa996cb4e01368f446817ae3c42

platform/platform-impl/src/com/intellij/openapi/application/impl/InternalUICustomization.kt

@@ -60,6 +60,8 @@ open class InternalUICustomization {
   else
     StripesUxCustomizer ()
 
+  open fun installBackgroundUpdater(component: JComponent) {}
+
   open fun frameHeaderBackgroundConverter(color: Color?): Color? = color
 
   open fun transformGraphics(component: JComponent, graphics: Graphics): Graphics = graphics

platform/platform-impl/src/com/intellij/toolWindow/xNext/toolbar/actions/toolbar/XNextActionToolbar.kt

@@ -1,16 +1,12 @@
 // Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.toolWindow.xNext.toolbar.actions.toolbar
 
-import com.intellij.ide.ui.LafManagerListener
 import com.intellij.openapi.actionSystem.ActionToolbar
 import com.intellij.openapi.actionSystem.impl.ActionToolbarImpl
-import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.application.impl.InternalUICustomization
 import com.intellij.toolWindow.xNext.toolbar.actions.XNextToolbarGroup
 import com.intellij.util.ui.JBUI
 import com.intellij.util.ui.JBUI.CurrentTheme.Toolbar.mainToolbarButtonInsets
-import com.intellij.util.ui.launchOnShow
-import kotlinx.coroutines.awaitCancellation
 
 internal class XNextActionToolbar : ActionToolbarImpl ("XNextStatusBar", XNextToolbarGroup(), true){
   init {
@@ -18,21 +14,6 @@ internal class XNextActionToolbar : ActionToolbarImpl ("XNextStatusBar", XNextTo
     setMinimumButtonSize { ActionToolbar.experimentalToolbarMinimumButtonSize() }
     setActionButtonBorder(JBUI.Borders.empty(mainToolbarButtonInsets()))
 
-    launchOnShow("XNextActionToolbar") {
-      try {
-        ApplicationManager.getApplication().messageBus.connect(this).subscribe(LafManagerListener.TOPIC, LafManagerListener {
-          updateBackground()
-        })
-        awaitCancellation()
-      } finally {
-      }
-    }
-    updateBackground()
-  }
-
-  private fun updateBackground() {
-    InternalUICustomization.getInstance()?.getCustomMainBackgroundColor()?.let {
-      background = it
-    }
+    InternalUICustomization.getInstance()?.installBackgroundUpdater(this)
   }
 }

platform/platform-impl/src/com/intellij/toolWindow/xNext/toolbar/actions/toolbar/XNextToolWindowButtonLook.kt

@@ -48,4 +48,9 @@ class XNextToolWindowButtonLook : HeaderToolbarButtonLook() {
       }
 
     }
-  }
+
+  override fun <ButtonType> paintBackground(g: Graphics, button: ButtonType?) where ButtonType : JComponent?, ButtonType : ActionButtonComponent? {
+    val g = IdeBackgroundUtil.getOriginalGraphics(g)
+    super.paintBackground(g, button)
+  }
+}