FIXME note in Makefile: starter/template thumbs...

The thumbnails for starters & templates are NOT being re-generated
when the source images are modified -- only when the thumbnail is
missing.  Needs an update to the target's prerequisites
(but I'm very rusty with this level of Makefile magic).

Also, update some Starter source images so they work better with
flood fill (Bald Eagle, World map, Gecko).

Makefile

@@ -699,6 +699,7 @@ STARTER_BACK_NAME=$(or $(wildcard $(subst starters/.thumbs,starters,$(@:-t.png=-
 		$(wildcard $(subst starters/.thumbs,starters,$(@:-t.png=-back.jpg))),\
 		$(wildcard $(subst starters/.thumbs,starters,$(@:-t.png=-back.jpeg))))
 
+# FIXME: Need to be able to update a thumbnail if the source image is modified -bjk 2019.09.14
 $(THUMB_STARTERS):
 	@echo -n "."
 	@mkdir -p starters/.thumbs
@@ -759,6 +760,7 @@ TEMPLATE_NAME=$(or $(wildcard $(subst templates/.thumbs,templates,$(@:-t.png=.sv
 		$(wildcard $(subst templates/.thumbs,templates,$(@:-t.png=.jpg))),\
 		$(wildcard $(subst templates/.thumbs,templates,$(@:-t.png=.jpeg))))
 
+# FIXME: Need to be able to update a thumbnail if the source image is modified -bjk 2019.09.14
 $(THUMB_TEMPLATES):
 	@echo -n "."
 	@mkdir -p templates/.thumbs

docs/CHANGES.txt

@@ -64,6 +64,9 @@ $Id$
     * Build process generates thumbnails of included Starters and Templates.
       When installed, this greatly increases the speed of the "New" dialog.
 
+    * Updated some Starter source images so they work better with
+      flood fill (Bald Eagle, World map, Gecko).
+
   * Documentation updates
     ---------------------
     * Mended link to MinGW/MSYS instructions at John Popplewell's website.