diff --git a/NEWS.md b/NEWS.md
index 7008242d..260938eb 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -10,6 +10,7 @@ Red Panda C++ Version 2.27
   - enhancement: Support unicode combining characters.
   - enhancement: Don't force fixed-width when using non fixed-width fonts.
   - change: Replace non-ascii font with fallback font.
+  - enhancement: Display ascii control chars.
 
 Red Panda C++ Version 2.26
   - enhancement: Code suggestion for embedded std::vectors.
diff --git a/RedPandaIDE/RedPandaIDE.pro b/RedPandaIDE/RedPandaIDE.pro
index 0a6ee8ee..00984131 100644
--- a/RedPandaIDE/RedPandaIDE.pro
+++ b/RedPandaIDE/RedPandaIDE.pro
@@ -555,6 +555,7 @@ else: unix:!android: target.path = $${PREFIX}/bin
 !isEmpty(target.path): INSTALLS += target
 
 RESOURCES += \
+    fonts.qrc \
     codes.qrc \
     defaultconfigs.qrc \
     icons.qrc \
diff --git a/RedPandaIDE/fonts.qrc b/RedPandaIDE/fonts.qrc
new file mode 100644
index 00000000..9c7b82f9
--- /dev/null
+++ b/RedPandaIDE/fonts.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/fonts">
+        <file alias="asciicontrol.ttf">resources/fonts/asciicontrol.ttf</file>
+    </qresource>
+</RCC>
diff --git a/RedPandaIDE/main.cpp b/RedPandaIDE/main.cpp
index 87067454..b60714df 100644
--- a/RedPandaIDE/main.cpp
+++ b/RedPandaIDE/main.cpp
@@ -46,6 +46,7 @@
 #include <QSharedMemory>
 #include <QBuffer>
 #include <winuser.h>
+#include <QFontDatabase>
 
 #include "widgets/cpudialog.h"
 #endif
@@ -404,6 +405,7 @@ int main(int argc, char *argv[])
                                   e.reason(),
                                   QMessageBox::Ok);
         }
+        // qDebug()<<"Load font"<<QFontDatabase::addApplicationFont(":/fonts/asciicontrol.ttf");
 
         MainWindow mainWindow;
         pMainWindow = &mainWindow;
diff --git a/RedPandaIDE/resources/fonts/asciicontrol.ttf b/RedPandaIDE/resources/fonts/asciicontrol.ttf
new file mode 100644
index 00000000..6735ad21
Binary files /dev/null and b/RedPandaIDE/resources/fonts/asciicontrol.ttf differ
diff --git a/RedPandaIDE/settings.cpp b/RedPandaIDE/settings.cpp
index 2c2144e5..cc4d7360 100644
--- a/RedPandaIDE/settings.cpp
+++ b/RedPandaIDE/settings.cpp
@@ -723,6 +723,7 @@ QStringList Settings::Editor::fontFamilies() const
         result.append(mFallbackFontName2);
     if (mUseFallbackFont3)
         result.append(mFallbackFontName3);
+    result.append("Red Panda Control");
     return result;
 }
 
diff --git a/libs/qsynedit/qsynedit/document.cpp b/libs/qsynedit/qsynedit/document.cpp
index c6a672ef..d5acbfb3 100644
--- a/libs/qsynedit/qsynedit/document.cpp
+++ b/libs/qsynedit/qsynedit/document.cpp
@@ -669,8 +669,8 @@ void Document::loadFromFile(const QString& filename, const QByteArray& encoding,
             } else if (line.endsWith("\n")){
                 line.remove(line.length()-1,1);
             }
-            if (isBinaryContent(line))
-                throw BinaryFileError(tr("'%1' is a binaray File!").arg(filename));
+            // if (isBinaryContent(line))
+            //     throw BinaryFileError(tr("'%1' is a binaray File!").arg(filename));
             if (allAscii) {
                 allAscii = isTextAllAscii(line);
             }
diff --git a/libs/redpanda_qt_utils/qt_utils/utils.cpp b/libs/redpanda_qt_utils/qt_utils/utils.cpp
index 41ebab47..12839677 100644
--- a/libs/redpanda_qt_utils/qt_utils/utils.cpp
+++ b/libs/redpanda_qt_utils/qt_utils/utils.cpp
@@ -724,17 +724,15 @@ QStringList absolutePaths(const QString &dirPath, const QStringList &relativePat
     return list;
 }
 
-
-
-bool isBinaryContent(const QByteArray &text)
-{
-    for (char c:text) {
-        if (c>=0 && c<' ' && c!='\t' && c!='\n' && c!='\r') {
-            return true;
-        }
-    }
-    return false;
-}
+// bool isBinaryContent(const QByteArray &text)
+// {
+//     for (char c:text) {
+//         if (c>=0 && c<' ' && c!='\t' && c!='\n' && c!='\r') {
+//             return true;
+//         }
+//     }
+//     return false;
+// }
 
 void clearQPlainTextEditFormat(QTextEdit *editor)
 {