256 px size for scrub pattern

symbols/generating_patterns/scrub.md

@@ -1,14 +1,14 @@
 The scrub pattern is generated by visiting http://www.imagico.de/map/jsdotpattern.php and using the following options:
 
+- distance = 43
 - regular snub square ('5' button)
-- distance = 45
-- radius = 64
-- radius y = 64
-- metric = 2
-- about 10-20 relax clicks
 - 'scrub2' image
+- pattern colour (RGB): 142 206 143
+- background colour: #b5e3b5
 - use the "render (px aligned)" option 
 
+The result is this following [pattern](http://www.imagico.de/map/jsdotpattern.php#x,256,jdp34863;g5,43,64,64;rd,1,0,0,scrub2,1,0,0,0,jdp48772,8ece8f,b5e3b5;).
+
 Generated SVG image is sanitized for use with Mapnik by the script svg_pattern.sh from the jsdotpattern repository at http://github.com/imagico/jsdotpattern.
 
 The final file is scrub.svg