diff --git a/gtk2_ardour/ardour3_styles.rc.in b/gtk2_ardour/ardour3_styles.rc.in
index 6e36565065..20bdb84356 100644
--- a/gtk2_ardour/ardour3_styles.rc.in
+++ b/gtk2_ardour/ardour3_styles.rc.in
@@ -868,8 +868,8 @@ style "processor_control_button"  = "very_small_text"
 
 style "processor_control_slider"  = "plugin_slider"
 {
-	bg[PRELIGHT] = @@COLPREFIX@_darkest
-	bg[NORMAL] = @@COLPREFIX@_bg
+	bg[PRELIGHT] = @@COLPREFIX@_bg
+	bg[NORMAL] = @@COLPREFIX@_darkest
 }
 
 style "track_list_display" = "small_bold_text"
diff --git a/gtk2_ardour/automation_controller.cc b/gtk2_ardour/automation_controller.cc
index edc7311c78..3240e6b81a 100644
--- a/gtk2_ardour/automation_controller.cc
+++ b/gtk2_ardour/automation_controller.cc
@@ -45,7 +45,7 @@ AutomationController::AutomationController(boost::shared_ptr<Automatable> printe
 {
         assert (_printer);
 
-	set_name (X_("PluginSlider")); // FIXME: get yer own name!
+	set_name (X_("ProcessorControlSlider"));
 
 	StartGesture.connect (sigc::mem_fun(*this, &AutomationController::start_touch));
 	StopGesture.connect (sigc::mem_fun(*this, &AutomationController::end_touch));
diff --git a/gtk2_ardour/generic_pluginui.cc b/gtk2_ardour/generic_pluginui.cc
index ffdbfb3bf2..77431e51a3 100644
--- a/gtk2_ardour/generic_pluginui.cc
+++ b/gtk2_ardour/generic_pluginui.cc
@@ -643,7 +643,7 @@ GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<Automat
 			//sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
 
 			control_ui->controller->set_size_request (200, req.height);
-			control_ui->controller->set_name (X_("PluginSlider"));
+			control_ui->controller->set_name (X_("ProcessorControlSlider"));
 			control_ui->controller->set_logarithmic (desc.logarithmic);
 
 			control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));