[gtk/gtk-4-4] media-controls: Make play button flat

[Matthias Clasen <matthiasc src gnome org>]

commit d2c610148e9653a79833084bc2d0f8fa771ac455
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Tue Sep 14 12:23:03 2021 +0500

    media-controls: Make play button flat
    
    Match the volume button.

 gtk/ui/gtkmediacontrols.ui | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/ui/gtkmediacontrols.ui b/gtk/ui/gtkmediacontrols.ui
index 412ecfa51c..eaca2ae17c 100644
--- a/gtk/ui/gtkmediacontrols.ui
+++ b/gtk/ui/gtkmediacontrols.ui
@@ -23,6 +23,7 @@
             <property name="receives-default">1</property>
             <property name="halign">center</property>
             <property name="valign">center</property>
+            <property name="has-frame">0</property>
             <property name="icon-name">media-playback-start-symbolic</property>
             <signal name="clicked" handler="play_button_clicked" object="GtkMediaControls" swapped="no"/>
           </object>