[1] - https://chrome.google.com/webstore/detail/stylish/fjnbnpbmke...
#header {
... css ...
background: <whatever color you want>;
... more css ...
}We're also part of Facebook's bug bounty whitehat program (https://www.facebook.com/whitehat/bounty/), if anyone comes across something in the future, we welcome responsible disclosure and pay out bounties through the program as well.
Maybe someone can give some insight.
Other than Grappelli, I've historically used the admin pretty much as-is. Creating admin functions is one thing, but lots of custom screens is quite another.
I also think that's one thing really lacking from the Django documentation, really great customization of the Admin.
//edit: oh, now I see somebody thought of my idea too https://github.com/dmpayton/django-admin-honeypot