From 0488036009a124e2988401ded7a6e0e9eff13f24 Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Tue, 8 Apr 2025 17:41:33 +0200
Subject: [PATCH] do not call highlighter.setAttributes() on LAF change,
 because it hard-caches forced text attributes, to fix IJPL-175049 Editor
 updates slowly on the UI theme switch, it creates blinking effect

GitOrigin-RevId: 78fd183555a205623154b7d7363260eeb395838d
---
 .../daemon/impl/BackgroundUpdateHighlightersUtil.java          | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/platform/analysis-impl/src/com/intellij/codeInsight/daemon/impl/BackgroundUpdateHighlightersUtil.java b/platform/analysis-impl/src/com/intellij/codeInsight/daemon/impl/BackgroundUpdateHighlightersUtil.java
index a052c2e62cf9..1b50fd2d77d4 100644
--- a/platform/analysis-impl/src/com/intellij/codeInsight/daemon/impl/BackgroundUpdateHighlightersUtil.java
+++ b/platform/analysis-impl/src/com/intellij/codeInsight/daemon/impl/BackgroundUpdateHighlightersUtil.java
@@ -311,7 +311,8 @@ public final class BackgroundUpdateHighlightersUtil {
     TextAttributesKey textAttributesKey = info.forcedTextAttributesKey == null ? info.type.getAttributesKey() : info.forcedTextAttributesKey;
     highlighter.setTextAttributesKey(textAttributesKey);
 
-    if (infoAttributes != null) {
+    if (infoAttributes == TextAttributes.ERASE_MARKER ||
+        infoAttributes != null && !infoAttributes.equals(highlighter.getTextAttributes(colorsScheme))) {
       highlighter.setTextAttributes(infoAttributes);
     }