diff --git a/sources/ewol/widget/Slider.cpp b/sources/ewol/widget/Slider.cpp
index f92c77d5..d9b4507e 100644
--- a/sources/ewol/widget/Slider.cpp
+++ b/sources/ewol/widget/Slider.cpp
@@ -75,16 +75,16 @@ void ewol::widget::Slider::onRegenerateDisplay() {
 
 bool ewol::widget::Slider::onEventInput(const ewol::event::Input& _event) {
 	vec2 relativePos = relativePosition(_event.getPos());
-	EWOL_ERROR("Event on Slider ..." << _event);
+	//EWOL_DEBUG("Event on Slider ..." << _event);
 	if (1 == _event.getId()) {
 		if(    ewol::key::statusSingle == _event.getStatus()
 		    || ewol::key::statusMove   == _event.getStatus()) {
 			// get the new position :
-			EWOL_INFO("Event on Slider (" << relativePos.x() << "," << relativePos.y() << ")");
+			EWOL_VERBOSE("Event on Slider (" << relativePos.x() << "," << relativePos.y() << ")");
 			float oldValue = m_value.get();
 			updateValue(m_min + (float)(relativePos.x() - dotRadius) / (m_size.x()-2*dotRadius) * (m_max-m_min));
 			if (oldValue != m_value) {
-				EWOL_DEBUG(" new value : " << m_value << " in [" << m_min << ".." << m_max << "]");
+				EWOL_VERBOSE(" new value : " << m_value << " in [" << m_min << ".." << m_max << "]");
 				signalChange.emit(m_value);
 			}
 			return true;
diff --git a/sources/ewol/widget/Slider.h b/sources/ewol/widget/Slider.h
index 4575b505..6155d5c6 100644
--- a/sources/ewol/widget/Slider.h
+++ b/sources/ewol/widget/Slider.h
@@ -24,7 +24,7 @@ namespace ewol {
 		class Slider : public ewol::Widget {
 			public:
 				// Event list of properties
-				ewol::object::Signal<int32_t> signalChange;
+				ewol::object::Signal<float> signalChange;
 			protected:
 				Slider();
 				void init();
diff --git a/sources/ewol/widget/meta/ColorChooser.cpp b/sources/ewol/widget/meta/ColorChooser.cpp
index f954d59b..b7ec2ea1 100644
--- a/sources/ewol/widget/meta/ColorChooser.cpp
+++ b/sources/ewol/widget/meta/ColorChooser.cpp
@@ -109,28 +109,28 @@ etk::Color<> ewol::widget::ColorChooser::getColor() {
 	return m_currentColor;
 }
 
-void ewol::widget::ColorChooser::onCallbackColorChangeRed(const int32_t& _newColor) {
+void ewol::widget::ColorChooser::onCallbackColorChangeRed(const float& _newColor) {
 	m_currentColor.setR(_newColor);
 	if (nullptr != m_widgetColorBar) {
 		m_widgetColorBar->setCurrentColor(m_currentColor);
 	}
 	signalChange.emit(m_currentColor);
 }
-void ewol::widget::ColorChooser::onCallbackColorChangeGreen(const int32_t& _newColor) {
+void ewol::widget::ColorChooser::onCallbackColorChangeGreen(const float& _newColor) {
 	m_currentColor.setG(_newColor);
 	if (nullptr != m_widgetColorBar) {
 		m_widgetColorBar->setCurrentColor(m_currentColor);
 	}
 	signalChange.emit(m_currentColor);
 }
-void ewol::widget::ColorChooser::onCallbackColorChangeBlue(const int32_t& _newColor) {
+void ewol::widget::ColorChooser::onCallbackColorChangeBlue(const float& _newColor) {
 	m_currentColor.setB(_newColor);
 	if (nullptr != m_widgetColorBar) {
 		m_widgetColorBar->setCurrentColor(m_currentColor);
 	}
 	signalChange.emit(m_currentColor);
 }
-void ewol::widget::ColorChooser::onCallbackColorChangeAlpha(const int32_t& _newColor) {
+void ewol::widget::ColorChooser::onCallbackColorChangeAlpha(const float& _newColor) {
 	m_currentColor.setA(_newColor);
 	if (nullptr != m_widgetColorBar) {
 		m_widgetColorBar->setCurrentColor(m_currentColor);
diff --git a/sources/ewol/widget/meta/ColorChooser.h b/sources/ewol/widget/meta/ColorChooser.h
index c3044ece..03833888 100644
--- a/sources/ewol/widget/meta/ColorChooser.h
+++ b/sources/ewol/widget/meta/ColorChooser.h
@@ -45,10 +45,10 @@ namespace ewol {
 				std::shared_ptr<ewol::widget::Slider> m_widgetBlue;
 				std::shared_ptr<ewol::widget::Slider> m_widgetAlpha;
 				etk::Color<> m_currentColor;
-				void onCallbackColorChangeRed(const int32_t& _newColor);
-				void onCallbackColorChangeGreen(const int32_t& _newColor);
-				void onCallbackColorChangeBlue(const int32_t& _newColor);
-				void onCallbackColorChangeAlpha(const int32_t& _newColor);
+				void onCallbackColorChangeRed(const float& _newColor);
+				void onCallbackColorChangeGreen(const float& _newColor);
+				void onCallbackColorChangeBlue(const float& _newColor);
+				void onCallbackColorChangeAlpha(const float& _newColor);
 				void onCallbackColorChange(const etk::Color<>& _newColor);
 		};
 	};