Checkers pieces scaling.

test/checkers_pieces.fl

@@ -5,7 +5,7 @@ code_name {.cxx}
 comment {//
 // Checkers images for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2020 by Bill Spitzak and others.
+// Copyright 1998-2022 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -17,13 +17,13 @@ comment {//
 //
 //     https://www.fltk.org/bugs.php
 //
-} {in_source in_header
+} {selected in_source in_header
 }
 
 data pixmaps_black_checker_png {public local filename {pixmaps/black_checker.png}
 }
 
-data pixmaps_white_checker_png {selected public local filename {pixmaps/white_checker.png}
+data pixmaps_white_checker_png {public local filename {pixmaps/white_checker.png}
 }
 
 data pixmaps_black_checker_king_png {public local filename {pixmaps/black_checker_king.png}