slider works better

.config/gtk-3.0/gtk-widgets.css

@@ -176,17 +176,22 @@ scale {
     background: @bg_color;
 }
 
-scale trough *,
-scale:hover trough * {
+scale trough highlight,
+scale:hover trough highlight {
     background: @acc1_color;
 }
 
+scale trough slider,
+scale:hover trough slider{
+    background: @acc1_color;
+    border-radius: 5px;
+}
+
 scale trough,
 scale:hover trough {
     background: mix(@fg_color, @bg_color, 0.5);
 }
 
-
 button:hover label,
 button:focus label,
 switch:hover slider,