[gimp] icons: fix PNG 3D-transform icons in makefile

[Ell <ell src gnome org>]

commit 469f8d619327c8b854642753370c717e74e463ea
Author: Ell <ell_se yahoo com>
Date:   Wed Jan 15 18:13:23 2020 +0200

    icons: fix PNG 3D-transform icons in makefile

 icons/Color/icon-list.mk | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/icons/Color/icon-list.mk b/icons/Color/icon-list.mk
index e79b30e5bb..6c9d2a0739 100644
--- a/icons/Color/icon-list.mk
+++ b/icons/Color/icon-list.mk
@@ -812,9 +812,9 @@ icons16_images = \
        16/gimp-tool-zoom.png                                   \
        16/gimp-tools.png                                       \
        16/gimp-transparency.png                                \
-       16/gimp-transform-3d-camera.svg                         \
-       16/gimp-transform-3d-move.svg                           \
-       16/gimp-transform-3d-rotate.svg                         \
+       16/gimp-transform-3d-camera.png                         \
+       16/gimp-transform-3d-move.png                           \
+       16/gimp-transform-3d-rotate.png                         \
        16/gimp-undo-history.png                                \
        16/gimp-user-manual.png                                 \
        16/gimp-video.png                                       \