Added ags

TODO copy ags config

roles/ags/files/style/mixins/scrollable.scss

@@ -0,0 +1,42 @@
+@mixin scrollable($top: false, $bottom: false) {
+
+    @if $top and $shadows {
+        undershoot.top {
+            background: linear-gradient(to bottom, $shadow-color, transparent, transparent, transparent, transparent, transparent);
+        }
+    }
+
+    @if $bottom and $shadows {
+        undershoot.bottom {
+            background: linear-gradient(to top, $shadow-color, transparent, transparent, transparent, transparent, transparent);
+        }
+    }
+
+    scrollbar,
+    scrollbar * {
+        all: unset;
+    }
+
+    scrollbar.vertical {
+        transition: $transition;
+        background-color: transparentize($bg, 0.7);
+
+        &:hover {
+            background-color: transparentize($bg, 0.3);
+
+            slider {
+                background-color: transparentize($fg, 0.3);
+                min-width: .6em;
+            }
+        }
+    }
+
+
+    scrollbar.vertical slider {
+        background-color: transparentize($fg, 0.5);
+        border-radius: $radius;
+        min-width: .4em;
+        min-height: 2em;
+        transition: $transition;
+    }
+}