some fixes

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

@@ -156,6 +156,15 @@ menuitem:disabled accelerator {
     color: mix(@fg_color, @bg_color, 0.5);
 }
 
+radio:checked {
+    color: @acc1_color;
+    background: @acc1_color;
+}
+
+radio,
+radio:hover {
+    background: mix(@fg_color, @bg_color, 0.5);
+}
 
 button {
     border-radius: 0px;