[gimp/wip/akkana/Light-theme] Fix autotools build for Light theme

[Akkana Peck <akkana src gnome org>]

commit 4686100d0e92eecc2d615f514a157fd9327c5275
Author: Akkana Peck <akkana shallowsky com>
Date:   Tue Aug 9 11:58:07 2022 -0600

    Fix autotools build for Light theme

 configure.ac | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/configure.ac b/configure.ac
index 6e3e72d0d2..b6cb64056d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3142,6 +3142,7 @@ icons/Legacy/Makefile
 icons/Symbolic/Makefile
 icons/hicolor/Makefile
 themes/Makefile
+themes/Light/Makefile
 themes/System/Makefile
 data/Makefile
 data/brushes/Makefile