[gtk/matthiasc/for-master: 16/22] scrolledwindow: Document the .frame style class

[Matthias Clasen <matthiasc src gnome org>]

commit b71bd33e798997c2a2ba81ae3913832349a09c3a
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Apr 16 23:26:35 2020 -0400

    scrolledwindow: Document the .frame style class

 gtk/gtkscrolledwindow.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index 7d523d0e97..6a651c5283 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -128,6 +128,8 @@
  * # CSS nodes
  *
  * GtkScrolledWindow has a main CSS node with name scrolledwindow.
+ * It gets a .frame style class added when #GtkScrolledWindow:has-frame
+ * is %TRUE.
  *
  * It uses subnodes with names overshoot and undershoot to
  * draw the overflow and underflow indications. These nodes get