[postr] Add new icons

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 111b4e947818be8f409575faf4d27ea8dbb61382
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Wed May 30 11:04:48 2018 -0400

    Add new icons

 Makefile.am | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/Makefile.am b/Makefile.am
index 4c39546..9990ac9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -45,12 +45,16 @@ appicon16dir = $(iconthemedir)/16x16/apps
 appicon22dir = $(iconthemedir)/22x22/apps
 appicon24dir = $(iconthemedir)/24x24/apps
 appicon32dir = $(iconthemedir)/32x32/apps
+appicon32dir = $(iconthemedir)/48x48/apps
+appicon32dir = $(iconthemedir)/256x256/apps
 appiconscdir = $(iconthemedir)/scalable/apps
 
 dist_appicon16_DATA = data/16x16/postr.png
 dist_appicon22_DATA = data/22x22/postr.png
 dist_appicon24_DATA = data/24x24/postr.png
 dist_appicon32_DATA = data/32x32/postr.png
+dist_appicon32_DATA = data/48x48/postr.png
+dist_appicon32_DATA = data/256x256/postr.png
 dist_appiconsc_DATA = data/scalable/postr.svg
 
 noinst_icons = data/16x16/postr.svg \