void (@NotNull LanguageHighlightLevel level) { PsiFile psiFile = getPsiFile(); if (psiFile != null && !getProject().isDisposed() && !getHighlightLevels().contains(level)) { FileViewProvider viewProvider = psiFile.getViewProvider(); Language language = Language.findLanguageByID(level.getLangID()); if (language != null) { PsiElement root = viewProvider.getPsi(language); if (root == null) return; FileHighlightingSetting setting = FileHighlightingSetting.fromInspectionsLevel(level.getLevel()); HighlightLevelUtil.forceRootHighlighting(root, setting); InjectedLanguageManager.getInstance(getProject()).dropFileCaches(psiFile); myDaemonCodeAnalyzer.restart(); // after that TrafficLightRenderer will be recreated anew, no need to patch myFileHighlightingSettings } } }