From 4ad2b4cb9ffdb1ff85159ba7defa62728027d20a Mon Sep 17 00:00:00 2001
From: Alexander Lobas <Alexander.Lobas@jetbrains.com>
Date: Tue, 17 Jun 2025 15:05:04 +0200
Subject: [PATCH] IJPL-192210 Exclude users with Material UI theme from A/B
 experiment

IJPL-191979 Exclude users with enabled "Sync Theme with OS" from A/B experiment

GitOrigin-RevId: 8ddc849030ad5ae2b7767431ff3dd7d9cc267832
---
 .../com/intellij/platform/ide/bootstrap/Islands.kt    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/platform/platform-impl/bootstrap/src/com/intellij/platform/ide/bootstrap/Islands.kt b/platform/platform-impl/bootstrap/src/com/intellij/platform/ide/bootstrap/Islands.kt
index 3b62aaf8daed..848ab1ee8ae5 100644
--- a/platform/platform-impl/bootstrap/src/com/intellij/platform/ide/bootstrap/Islands.kt
+++ b/platform/platform-impl/bootstrap/src/com/intellij/platform/ide/bootstrap/Islands.kt
@@ -1,12 +1,14 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.platform.ide.bootstrap
 
+import com.intellij.ide.plugins.PluginManagerCore
 import com.intellij.ide.ui.LafManager
 import com.intellij.ide.ui.laf.UiThemeProviderListManager
 import com.intellij.ide.util.PropertiesComponent
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.application.Experiments
 import com.intellij.openapi.editor.colors.EditorColorsManager
+import com.intellij.openapi.extensions.PluginId
 import com.intellij.ui.JBColor
 import com.intellij.util.PlatformUtils
 import org.jetbrains.annotations.ApiStatus
@@ -46,11 +48,20 @@ private fun enableTheme(oneIsland: Boolean) {
   val currentTheme = lafManager.currentUIThemeLookAndFeel?.id ?: return
   val currentEditorTheme = colorsManager.globalScheme.displayName
 
+  if (lafManager.autodetect) {
+    return
+  }
+
   if ((currentTheme != "ExperimentalDark" && currentTheme != "ExperimentalLight" && currentTheme != "ExperimentalLightWithLightHeader") ||
       (currentEditorTheme != "Light" && currentEditorTheme != "Dark")) {
     return
   }
 
+  val id = PluginId.getId("com.chrisrm.idea.MaterialThemeUI")
+  if (PluginManagerCore.findPlugin(id) != null && !PluginManagerCore.isDisabled(id)) {
+    return
+  }
+
   val uiThemeManager = UiThemeProviderListManager.getInstance()
   val isLight = JBColor.isBright()