I'm not sure if the other forum is less active or?? But I thought I'd cross post the issue here with links to the other explainations. I have tried putting a copy of: print.css, common.css, and drupal.css in /themes/chameleon/marvin_black. I edited them all to make sure the background was #000. That didn't fix it.(some setting has active as black and it's making things invisible. I have active set another colour in the files. Also the admin page colour issues) If I look in the chameleon.theme I don't see where to fix it either. I'm guessing wherever it is that I fix it is also where I tell it margins etc because in admin the activity listings overshoot. Persian I'm having the same admin colour issues, overshooting(but add in the search box is doing it too), and instead of somewhere active is set black the popup menu is transparent and with text/color below it is making it looked gibbled or hard to read. I can't see where transparency is turned on for that and even looked in the java file. Once I know how to fix the admin look and transparency issues it should help me for future themes because then I should just know where it is to fix it. Right now I have no idea how to fix it and it's keeping me from completing the themes and moving on to doing some more.

http://drupal.org/node/25157
http://drupal.org/node/25100

Note in those posts there are links to screenshots showing the problem in question except for the overshooting on the admin page and the going invisible active.