I have set up 'vimdiff' as my default svn-diff tool by adding below line to ~/.subversion/config
diff-cmd = /home/ravikirn/svndiff/diffwrap.sh
diffwrap.sh
!/bin/sh
# Configure your favorite diff program here.
DIFF="/usr/local/bin/vimdiff"
# Subversion provides the paths we need as the sixth and seventh
# parameters.
LEFT=${6}
RIGHT=${7}
# Call the diff command (change the following line to make sense for
# your merge program).
$DIFF $LEFT $RIGHT
But, vimdiff puts all ugly colors to display the diff. I have black background and green font color, how can I modify vimdiff to show custom colors for this diff ? I want a more pleasant experience with the same.