diff --git a/NEWS.md b/NEWS.md
index b4e98dba..15ce654f 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -124,6 +124,7 @@ Red Panda C++ Version 2.27
   - fix: Compiler set options "Check for stack smashing attacks (-fstack-protector)" was not correctly applied when compiling.
   - fix: can't jump to definition/declaration for symbols in using alias statement like "using ::printf".
   - fix: Don't show completion suggestion for members of variable which type name has namespace alias;
+  - fix: Theme manager not correctly inited in options dialog / environment / appearance.  
     
 Red Panda C++ Version 2.26
   - enhancement: Code suggestion for embedded std::vectors.
diff --git a/RedPandaIDE/settingsdialog/environmentappearancewidget.cpp b/RedPandaIDE/settingsdialog/environmentappearancewidget.cpp
index d48471cb..6cafdc02 100644
--- a/RedPandaIDE/settingsdialog/environmentappearancewidget.cpp
+++ b/RedPandaIDE/settingsdialog/environmentappearancewidget.cpp
@@ -68,6 +68,7 @@ void EnvironmentAppearanceWidget::doSave()
 {
     if (pSettings->environment().theme()!=ui->cbTheme->currentData().toString()) {
         ThemeManager themeManager;
+        themeManager.setUseCustomTheme(pSettings->environment().useCustomTheme());
         PAppTheme appTheme = themeManager.theme(ui->cbTheme->currentData().toString());
         if (appTheme && !appTheme->defaultColorScheme().isEmpty()) {
             pSettings->editor().setColorScheme(appTheme->defaultColorScheme());
@@ -93,6 +94,7 @@ void EnvironmentAppearanceWidget::doSave()
 void EnvironmentAppearanceWidget::init()
 {
     ThemeManager themeManager;
+    themeManager.setUseCustomTheme(pSettings->environment().useCustomTheme());
     QList<PAppTheme> appThemes = themeManager.getThemes();
     foreach(const PAppTheme& appTheme, appThemes) {
         ui->cbTheme->addItem(appTheme->displayName(),appTheme->name());
@@ -111,6 +113,7 @@ void EnvironmentAppearanceWidget::init()
 void EnvironmentAppearanceWidget::on_cbTheme_currentIndexChanged(int /* index */)
 {
     ThemeManager themeManager;
+    themeManager.setUseCustomTheme(pSettings->environment().useCustomTheme());
     PAppTheme appTheme = themeManager.theme(ui->cbTheme->currentData().toString());
     if (appTheme && !appTheme->defaultIconSet().isEmpty()) {
         for (int i=0; i<ui->cbIconSet->count();i++) {