sources.txt

   1 Soil texture:
   2 https://commons.wikimedia.org/wiki/File:2008-08-12_Mulch.jpg
   3
   4 Stone texture:
   5 https://commons.wikimedia.org/wiki/File:Galets.jpg
   6
   7 Shrub texture:
   8 https://commons.wikimedia.org/wiki/File:Gew%C3%B6hnlicher_Buchsbaum,_Buxus_sempervirens_.JPG
   9
  10 Pointer image: data/images/32/default_cursor.png
  11 Based on mouse_pointer_wolfram_es_01.png
  12 (image cropped and shrunk to 32x32)
  13 From OpenClipArt: http://www.openclipart.org
  14 LICENSE: Public Domain