[metacity] theme-viewer: fix copy/paste error

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 737de27d056be150851d07f1d71a8827d24515ed
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Jun 19 21:07:37 2017 +0300

    theme-viewer: fix copy/paste error

 theme-viewer/theme-viewer-window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/theme-viewer/theme-viewer-window.c b/theme-viewer/theme-viewer-window.c
index 2e56e34..5ceb452 100644
--- a/theme-viewer/theme-viewer-window.c
+++ b/theme-viewer/theme-viewer-window.c
@@ -734,7 +734,7 @@ theme_box_draw_cb (GtkWidget         *widget,
   if (!window->mini_icon)
     window->mini_icon = get_icon (window, MINI_ICON_SIZE);
 
-  if (!window->mini_icon)
+  if (!window->icon)
     window->icon = get_icon (window, ICON_SIZE);
 
   cairo_translate (cr, PADDING, PADDING);