From e7bd9adf3ed585f3b7492763a9ea7d8f2ba2c854 Mon Sep 17 00:00:00 2001
From: Emmanuele Bassi <ebassi@gnome.org>
Date: Fri, 13 Dec 2019 11:27:22 +0000
Subject: [PATCH] Document the CSS class used for the ScaleButton popover

Otherwise it's not easy to divine the selector for the scale widget
inside the popover.
---
 gtk/gtkscalebutton.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gtk/gtkscalebutton.c b/gtk/gtkscalebutton.c
index e74dcf2b49..82829b153f 100644
--- a/gtk/gtkscalebutton.c
+++ b/gtk/gtkscalebutton.c
@@ -70,6 +70,8 @@
  *
  * GtkScaleButton has a single CSS node with name button. To differentiate
  * it from a plain #GtkButton, it gets the .scale style class.
+ *
+ * The popup widget that contains the scale has a .scale-popup style class.
  */