[gimp] themes: add missing png reference to makefile

[Benoit Touchette <bentou src gnome org>]

commit 1013cadc3d9e7d8a1a20ab6c156ee07e04dfe815
Author: Benoit Touchette <draekko software+gimp gmail com>
Date:   Mon Jan 11 09:07:54 2016 -0500

    themes: add missing png reference to makefile

 themes/The-Dark-Side-of-Gimp/Makefile.am |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/themes/The-Dark-Side-of-Gimp/Makefile.am b/themes/The-Dark-Side-of-Gimp/Makefile.am
index 5605e42..6a24856 100644
--- a/themes/The-Dark-Side-of-Gimp/Makefile.am
+++ b/themes/The-Dark-Side-of-Gimp/Makefile.am
@@ -59,8 +59,8 @@ themeui_DATA =        \
        ui/entry-border-disabled-notebook.png   \
        ui/entry-border-fill-active.png \
        ui/entry-border-fill.png        \
-       ui/entry-border-notebook.png    \
        ui/entry-border-notebook-null.png       \
+       ui/entry-border-notebook.png    \
        ui/ext-bottom.png       \
        ui/extension-bottom.png \
        ui/extension-left.png   \
@@ -112,6 +112,7 @@ themeui_DATA =      \
        ui/progressbar-trough.png       \
        ui/shadow-in-alt.png    \
        ui/shadow-in.png        \
+       ui/shadow-null.png      \
        ui/shadow-out.png       \
        ui/slider-h.png \
        ui/slider-v.png \