update system

overlays/asztal/style/mixins/switch.scss

@@ -0,0 +1,16 @@
+@import './button';
+
+@mixin switch {
+    @include button;
+
+    slider {
+        background-color: $primary-fg;
+        border-radius: $radius;
+        min-width: 24px;
+        min-height: 24px;
+    }
+
+    image {
+        color: transparent;
+    }
+}