diff --git a/libIME/DisplayAttributeInfo.h b/libIME/DisplayAttributeInfo.h
index b240cfa..55c8299 100644
--- a/libIME/DisplayAttributeInfo.h
+++ b/libIME/DisplayAttributeInfo.h
@@ -38,31 +38,16 @@ class DisplayAttributeInfo : public ITfDisplayAttributeInfo {
 		return atom_;
 	}
 
-	void setTextColor(COLORREF color) {
-		attrib_.crText.type = TF_CT_COLORREF;
-		attrib_.crText.cr = color;
-	}
-
 	void setTextColor(int index) {
 		attrib_.crText.type = TF_CT_SYSCOLOR;
 		attrib_.crText.nIndex = index;
 	}
 
-	void setBackgroundColor(COLORREF color) {
-		attrib_.crBk.type = TF_CT_COLORREF;
-		attrib_.crBk.cr = color;
-	}
-
 	void setBackgroundColor(int index) {
 		attrib_.crBk.type = TF_CT_SYSCOLOR;
 		attrib_.crBk.nIndex = index;
 	}
 
-	void setLineColor(COLORREF color) {
-		attrib_.crLine.type = TF_CT_COLORREF;
-		attrib_.crLine.cr = color;
-	}
-
 	void setLineColor(int index) {
 		attrib_.crLine.type = TF_CT_SYSCOLOR;
 		attrib_.crLine.nIndex = index;
diff --git a/libIME/ImeModule.cpp b/libIME/ImeModule.cpp
index c688e6d..5cae524 100644
--- a/libIME/ImeModule.cpp
+++ b/libIME/ImeModule.cpp
@@ -57,9 +57,9 @@ ImeModule::ImeModule(HMODULE module, const CLSID& textServiceClsid):
 	// regiser default display attributes
 	inputAttrib_ = new DisplayAttributeInfo(g_inputDisplayAttributeGuid);
 	inputAttrib_->setTextColor(COLOR_WINDOWTEXT);
+	inputAttrib_->setBackgroundColor(COLOR_WINDOW);
 	inputAttrib_->setLineStyle(TF_LS_DOT);
 	inputAttrib_->setLineColor(COLOR_WINDOWTEXT);
-	inputAttrib_->setBackgroundColor(COLOR_WINDOW);
 	displayAttrInfos_.push_back(inputAttrib_);
 	// convertedAttrib_ = new DisplayAttributeInfo(g_convertedDisplayAttributeGuid);
 	// displayAttrInfos_.push_back(convertedAttrib_);