diff --git a/RedPandaIDE/colorschemes/Borland.scheme b/RedPandaIDE/colorschemes/Borland.scheme
index 4c2ab152..2f2a8145 100644
--- a/RedPandaIDE/colorschemes/Borland.scheme
+++ b/RedPandaIDE/colorschemes/Borland.scheme
@@ -160,6 +160,9 @@
 		"foreground" : "#000000",
 		"background" : "#00FFFF"
 	},
+	"Fold Line" : {
+		"foreground" : "#FFFF00"
+	},
 	"Active Line" : {
 		"background" : "#000050"
 	},
diff --git a/RedPandaIDE/colorschemes/Classic.scheme b/RedPandaIDE/colorschemes/Classic.scheme
index 54af015c..37ae4883 100644
--- a/RedPandaIDE/colorschemes/Classic.scheme
+++ b/RedPandaIDE/colorschemes/Classic.scheme
@@ -160,6 +160,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#0000FF"
 	},
+	"Fold Line" : {
+		"foreground" : "#000000"
+	},
 	"Active Line" : {
 		"background" : "#CCFFFF"
 	},
diff --git a/RedPandaIDE/colorschemes/Classic_Plus.scheme b/RedPandaIDE/colorschemes/Classic_Plus.scheme
index e2b132df..65b3dab1 100644
--- a/RedPandaIDE/colorschemes/Classic_Plus.scheme
+++ b/RedPandaIDE/colorschemes/Classic_Plus.scheme
@@ -160,6 +160,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#0000FF"
 	},
+	"Fold Line" : {
+		"foreground" : "#000000"
+	},
 	"Active Line" : {
 		"background" : "#CCFFFF"
 	},
diff --git a/RedPandaIDE/colorschemes/GSS_Hacker.scheme b/RedPandaIDE/colorschemes/GSS_Hacker.scheme
index d8393394..e5509fe2 100644
--- a/RedPandaIDE/colorschemes/GSS_Hacker.scheme
+++ b/RedPandaIDE/colorschemes/GSS_Hacker.scheme
@@ -178,6 +178,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#008E99"
 	},
+	"Fold Line" : {
+		"foreground" : "#A5A5A5"
+	},
 	"Active Line" : {
 		"background" : "#323232"
 	},
diff --git a/RedPandaIDE/colorschemes/Intellij_Classic.scheme b/RedPandaIDE/colorschemes/Intellij_Classic.scheme
index 83022258..54d8a414 100644
--- a/RedPandaIDE/colorschemes/Intellij_Classic.scheme
+++ b/RedPandaIDE/colorschemes/Intellij_Classic.scheme
@@ -160,6 +160,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#0000FF"
 	},
+	"Fold Line" : {
+		"foreground" : "#000000"
+	},
 	"Active Line" : {
 		"background" : "#CCFFFF"
 	},
diff --git a/RedPandaIDE/colorschemes/Matrix.scheme b/RedPandaIDE/colorschemes/Matrix.scheme
index 94bfc495..9a5da5b7 100644
--- a/RedPandaIDE/colorschemes/Matrix.scheme
+++ b/RedPandaIDE/colorschemes/Matrix.scheme
@@ -161,6 +161,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#0000FF"
 	},
+	"Fold Line" : {
+		"foreground" : "#FF0000"
+	},
 	"Active Line" : {
 		"background" : "#202020"
 	},
diff --git a/RedPandaIDE/colorschemes/Obsidian.scheme b/RedPandaIDE/colorschemes/Obsidian.scheme
index 0425cce9..e72d36aa 100644
--- a/RedPandaIDE/colorschemes/Obsidian.scheme
+++ b/RedPandaIDE/colorschemes/Obsidian.scheme
@@ -160,6 +160,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#00CCFF"
 	},
+	"Fold Line" : {
+		"foreground" : "#C00000"
+	},
 	"Active Line" : {
 		"background" : "#323232"
 	},
diff --git a/RedPandaIDE/colorschemes/Obvilion.scheme b/RedPandaIDE/colorschemes/Obvilion.scheme
index f7c8fbda..8e15615a 100644
--- a/RedPandaIDE/colorschemes/Obvilion.scheme
+++ b/RedPandaIDE/colorschemes/Obvilion.scheme
@@ -171,6 +171,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#33CCCC"
 	},
+	"Fold Line" : {
+		"foreground" : "#FF9900"
+	},
 	"Active Line" : {
 		"background" : "#323232"
 	},
diff --git a/RedPandaIDE/colorschemes/Plastic_Code_Wrap.scheme b/RedPandaIDE/colorschemes/Plastic_Code_Wrap.scheme
index 0bef601e..7f3b39c0 100644
--- a/RedPandaIDE/colorschemes/Plastic_Code_Wrap.scheme
+++ b/RedPandaIDE/colorschemes/Plastic_Code_Wrap.scheme
@@ -160,6 +160,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#00CCFF"
 	},
+	"Fold Line" : {
+		"foreground" : "#C00000"
+	},
 	"Active Line" : {
 		"background" : "#323232"
 	},
diff --git a/RedPandaIDE/colorschemes/Twilight.scheme b/RedPandaIDE/colorschemes/Twilight.scheme
index bb11d7e0..ef3a29a3 100644
--- a/RedPandaIDE/colorschemes/Twilight.scheme
+++ b/RedPandaIDE/colorschemes/Twilight.scheme
@@ -161,6 +161,9 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#0000FF"
 	},
+	"Fold Line" : {
+		"foreground" : "#FFFFFF"
+	},
 	"Active Line" : {
 		"background" : "#221111"
 	},
diff --git a/RedPandaIDE/colorschemes/VS_Code.scheme b/RedPandaIDE/colorschemes/VS_Code.scheme
index c5a9da22..e6369033 100644
--- a/RedPandaIDE/colorschemes/VS_Code.scheme
+++ b/RedPandaIDE/colorschemes/VS_Code.scheme
@@ -158,6 +158,9 @@
 		"foreground" : "#FFFFCE",
 		"background" : "#00376F"
 	},
+	"Fold Line" : {
+		"foreground" : "#C0C0C0"
+	},
 	"Active Line" : {
 		"background" : "#323232"
 	},
diff --git a/RedPandaIDE/colorschemes/Visual_Studio.scheme b/RedPandaIDE/colorschemes/Visual_Studio.scheme
index fc9abccb..ce5b86c3 100644
--- a/RedPandaIDE/colorschemes/Visual_Studio.scheme
+++ b/RedPandaIDE/colorschemes/Visual_Studio.scheme
@@ -158,6 +158,8 @@
 		"foreground" : "#FFFFFF",
 		"background" : "#0000FF"
 	},
+	"Fold Line" : {
+	},
 	"Active Line" : {
 		"background" : "#CCFFFF"
 	},
diff --git a/RedPandaIDE/compiler/compiler.cpp b/RedPandaIDE/compiler/compiler.cpp
index 63f0ffcb..7c11b1c5 100644
--- a/RedPandaIDE/compiler/compiler.cpp
+++ b/RedPandaIDE/compiler/compiler.cpp
@@ -213,10 +213,11 @@ void Compiler::processOutput(QString &line)
     issue->line = getLineNumberFromOutputLine(line);
     if (issue->line > 0) {
         issue->column = getColunmnFromOutputLine(line);
-        if (issue->column>0)
-            issue->type = getIssueTypeFromOutputLine(line);
-        else
+        issue->type = getIssueTypeFromOutputLine(line);
+        if (issue->column<=0 && issue->type == CompileIssueType::Other) {
             issue->type = CompileIssueType::Error; //linkage error
+            mErrorCount += 1;
+        }
     } else {
         issue->column = -1;
         issue->type = getIssueTypeFromOutputLine(line);
diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index 6f46d5be..4873ddb7 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -1213,11 +1213,11 @@ void Editor::applyColorScheme(const QString& schemeName)
     }
     item = pColorManager->getItem(schemeName,COLOR_SCHEME_FOLD_LINE);
     if (item) {
-        //todo
+        codeFolding().folderBarLinesColor = item->foreground();
     }
     item = pColorManager->getItem(schemeName,COLOR_SCHEME_INDENT_GUIDE_LINE);
     if (item) {
-        //todo
+        codeFolding().indentGuidesColor = item->foreground();
     }
     this->invalidate();
 }
diff --git a/RedPandaIDE/qsynedit/SynEdit.cpp b/RedPandaIDE/qsynedit/SynEdit.cpp
index 418288c5..d51832d1 100644
--- a/RedPandaIDE/qsynedit/SynEdit.cpp
+++ b/RedPandaIDE/qsynedit/SynEdit.cpp
@@ -3874,6 +3874,11 @@ void SynEdit::setUseCodeFolding(bool value)
     }
 }
 
+SynEditCodeFolding &SynEdit::codeFolding()
+{
+    return mCodeFolding;
+}
+
 QString SynEdit::lineText()
 {
     if (mCaretY >= 1 && mCaretY <= mLines->count())
diff --git a/RedPandaIDE/qsynedit/SynEdit.h b/RedPandaIDE/qsynedit/SynEdit.h
index 8c5f1c68..32b6b90e 100644
--- a/RedPandaIDE/qsynedit/SynEdit.h
+++ b/RedPandaIDE/qsynedit/SynEdit.h
@@ -273,6 +273,8 @@ public:
     bool useCodeFolding() const;
     void setUseCodeFolding(bool value);
 
+    SynEditCodeFolding & codeFolding();
+
     QString lineText();
     void setLineText(const QString s);