wmii windows manager theme config

I’ve managed to install wmii windows manager, and I really like it, but now I want to set up a new theme for it. I tried to create a ~.wmii/wmii.rc file with the following lines:
#!/bin/sh -f

Configure wmii

Colors tuples: “<text> <background> <border>”

WMII_NORMCOLORS=’#e0e0e0 #444444 #666666
WMII_FOCUSCOLORS=’#A0FF00 #686363 #8c8c8c

made it executable, but that do not work. I also looked up /usr/local/bin/wmii.rc file, but didn’t get how can I modify it. Can u help me out on how to add your themes for wmii?