diff -ru xfce4-cpufreq-plugin-1.1.3/panel-plugin/xfce4-cpufreq-plugin.c xfce4-cpufreq-plugin-1.1.3.new/panel-plugin/xfce4-cpufreq-plugin.c
--- xfce4-cpufreq-plugin-1.1.3/panel-plugin/xfce4-cpufreq-plugin.c	2014-12-22 18:50:31.000000000 +0100
+++ xfce4-cpufreq-plugin-1.1.3.new/panel-plugin/xfce4-cpufreq-plugin.c	2017-10-15 17:25:42.887394624 +0200
@@ -302,6 +302,61 @@
 	return cpu;
 }
 
+static 
+void cpufreq_update_pixmap(CpuInfo *cpu)
+{
+	GdkPixbuf *cur_pixmap;
+	GdkPixbuf *img_pixmap;
+	gint freq_hash;
+	 
+	gdouble delta = cpu->max_freq - cpu->min_freq;
+	 
+	if (delta <= 0.0) 
+		return;  
+
+	freq_hash = cpu->cur_freq >> 16;
+	
+	cur_pixmap = g_hash_table_lookup(cpuFreq->colored_pixmaps, 
+		         		             GINT_TO_POINTER(freq_hash));
+
+	if (!cur_pixmap) {
+		guchar *pixels = NULL;
+		gsize plength;
+		gsize pcomps;
+		gsize p;
+		
+		gdouble scale = (cpu->cur_freq - cpu->min_freq) / delta;
+		if (scale > 1.0) 
+			scale = 1.0; 
+	
+		guint val = (guchar)(255.0 * scale); 
+		cur_pixmap = gdk_pixbuf_copy (cpuFreq->template_icon);
+
+		if (!cur_pixmap) 
+			return; 
+
+		pixels = gdk_pixbuf_get_pixels (cur_pixmap);
+		plength = gdk_pixbuf_get_byte_length (cur_pixmap);
+		pcomps = gdk_pixbuf_get_n_channels (cur_pixmap);
+		
+		for (p = 0; p < plength; p += pcomps) {
+			gint delta1 = abs(pixels[p] - pixels[p+1]); 
+			gint delta2 = abs(pixels[p] - pixels[p+2]);
+			if (delta1 < 10 && delta2 < 10)
+				pixels[p] = val;
+		}
+
+		g_hash_table_insert(cpuFreq->colored_pixmaps, 
+		                    GINT_TO_POINTER(freq_hash), cur_pixmap); 
+	}
+	gdk_pixbuf_copy_area (cur_pixmap, 0, 0, 
+	                      gdk_pixbuf_get_width(cur_pixmap), 
+	                      gdk_pixbuf_get_height(cur_pixmap),
+                          gtk_image_get_pixbuf(cpuFreq->icon), 
+					      0, 0);
+	gtk_widget_queue_draw (cpuFreq->icon);
+}
+
 gboolean
 cpufreq_update_plugin (gboolean reset_label_size)
 {
@@ -318,6 +373,8 @@
 
 	ret = cpufreq_update_label (cpu);
 
+	cpufreq_update_pixmap(cpu); 
+
 	if (cpuFreq->layout_changed) {
 		cpufreq_label_set_font ();
 		cpufreq_widgets_layout ();
@@ -412,16 +469,23 @@
 			 !cpufreq->options->show_label_governor))
 			icon_size -= 4;
 
-		buf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+		if (cpufreq->template_icon) 
+			g_object_unref (G_OBJECT (cpufreq->template_icon));
+		
+		cpufreq->template_icon = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
 										"xfce4-cpufreq-plugin",
 										icon_size, 0, NULL);
-		if (buf) {
-			cpufreq->icon = gtk_image_new_from_pixbuf (buf);
-			g_object_unref (G_OBJECT (buf));
+		if (cpufreq->template_icon) {
+			cpufreq->icon = gtk_image_new_from_pixbuf (cpufreq->template_icon);
 		} else {
 			cpufreq->icon = gtk_image_new_from_icon_name
 				("xfce4-cpufreq-plugin", GTK_ICON_SIZE_BUTTON);
+			cpufreq->template_icon = gtk_image_get_pixbuf(cpufreq->icon); 
 		}
+
+		cpufreq->template_icon = gdk_pixbuf_copy(cpufreq->template_icon);
+		g_hash_table_remove_all (cpufreq->colored_pixmaps);
+		
 		gtk_box_pack_start (GTK_BOX (cpufreq->box), cpufreq->icon, FALSE, FALSE, 0);
 		gtk_widget_show (cpufreq->icon);
 	}
@@ -555,6 +619,9 @@
 {
 	gint i;
 
+	g_object_unref(G_OBJECT(cpuFreq->template_icon)); 
+	g_hash_table_unref(cpuFreq->colored_pixmaps); 
+		
 	if (cpuFreq->timeoutHandle)
 		g_source_remove (cpuFreq->timeoutHandle);
 
@@ -625,7 +692,11 @@
 	cpuFreq->panel_size = xfce_panel_plugin_get_size (cpuFreq->plugin);
 	cpuFreq->label_max_width = -1;
 	cpuFreq->cpus    = g_ptr_array_new ();
-
+	cpuFreq->template_icon = NULL;
+	cpuFreq->colored_pixmaps = g_hash_table_new_full (NULL, 
+	                                                  NULL,
+	                                                  NULL, 
+	                                                  g_object_unref);	
 	cpufreq_read_config ();
 	cpuFreq->layout_changed = TRUE;
 
diff -ru xfce4-cpufreq-plugin-1.1.3/panel-plugin/xfce4-cpufreq-plugin.h xfce4-cpufreq-plugin-1.1.3.new/panel-plugin/xfce4-cpufreq-plugin.h
--- xfce4-cpufreq-plugin-1.1.3/panel-plugin/xfce4-cpufreq-plugin.h	2014-12-22 18:50:31.000000000 +0100
+++ xfce4-cpufreq-plugin-1.1.3.new/panel-plugin/xfce4-cpufreq-plugin.h	2017-10-15 17:26:35.183787170 +0200
@@ -81,8 +81,13 @@
 	/* Intel P-State parameters */
 	IntelPState *intel_pstate;
 
+	/* Table with frequency color coded pixbufs */
+	GHashTable *colored_pixmaps;   
+	
 	/* Widgets */
-	GtkWidget *button, *box, *icon, *label;
+	GtkWidget *button, *box, *label;
+	GtkImage *icon;
+	GdkPixbuf *template_icon; 
 	gboolean layout_changed;
 	gint label_max_width;