# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1690969572 -10800
# Node ID 4ffa5c4181aa8eceaa288d42a5a74ee56329fa24
# Parent  653120d50ed916db3f51b7c526fa696efccf7df7
Add note about GIMP in README.

diff -r 653120d50ed9 -r 4ffa5c4181aa README
--- a/README	Wed Aug 02 12:21:14 2023 +0300
+++ b/README	Wed Aug 02 12:46:12 2023 +0300
@@ -44,6 +44,8 @@
 
 Optional:
 
+ - GIMP 2.x or newer for best quality worldmap PNG color reduction.
+
  - xsltproc for generating changelog.txt
 
  - Perl 5.10 or later for regenerating old/hcbat.loc via old/mapref.pl