[quadrapassel] Improve the pause/play button

[Mario Wenzel <mariowenzel src gnome org>]

commit 3e98faef530aacdc629a0133c5f802c7ff11e248
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Fri May 30 13:42:19 2014 -0500

    Improve the pause/play button
    
    For 3.14, all game buttons must use relief. This looks bad unless we
    additionally make the button bigger.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731010

 src/quadrapassel.vala |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/src/quadrapassel.vala b/src/quadrapassel.vala
index ee97142..8075c1c 100644
--- a/src/quadrapassel.vala
+++ b/src/quadrapassel.vala
@@ -141,9 +141,7 @@ public class Quadrapassel : Gtk.Application
         pause_play_button.add (pause_play_button_image);
         pause_play_button.action_name = "app.new-game";
         pause_play_button.tooltip_text = _("Start a new game");
-        pause_play_button.valign = Gtk.Align.CENTER;
-        pause_play_button.halign = Gtk.Align.CENTER;
-        pause_play_button.relief = Gtk.ReliefStyle.NONE;
+        pause_play_button.margin = 30;
         pause_play_button_image.show ();
         pause_play_button.show ();