Style du bouton mute passé en QSS dynamique

styles/styles.qss

@@ -107,6 +107,14 @@ QPushButton#mute_btn {
   background-color: rgb(255, 120, 0);
 }
 
+QPushButton#mute_btn[muted="true"] {
+    background-color: rgb(200, 0, 0);
+}
+
+QPushButton#mute_btn:hover {
+    background-color: rgb(255, 150, 40);
+}
+
 QPushButton#close_btn {
   border : 0;
   background: transparent;