With the upgrade, many people have been dissatisfied with the new color scheme. For those I have decided to create a custom style for the website that aims to recreate the old look and feel of the site. You will need to install the Stylish extension available for both Firefox and Chrome, and then visit the site below and install the custom style.
It is still a Work in Progress and I will keep updating it. Please let me know of bugs that you may find.