Optimal settings:

Disable "custom styles" in Reddit preferences
Turn off RES night mode and preferably RES style tweaks in RES UI options to get the intended color scheme
Turn off RES Subreddit manager if you don't like the busy and white/blue colored drop-down menu
Turn off RES keyboard navigation if you don't like the annoying title highlighting RES does


Tested on Windows 7/XP and Firefox. I don't use Chrome and Linux regularly so I haven't fully tested it with this theme.

7/26/2012 - RES images now resize with content. Fixed some bugs. Probably last update since I don't use this style anymore.
7/18/2012 - Fixed drop-down menu location
7/15/2012 - Did away with custom logo, seems to cause problems when Reddit changes logo
7/11/2012 - Changed Reddit logo to what hopefully blends better with the theme
7/10/2012 - Username area fixed due to overflow on username page with RES installed. Images linked from RES button are now expandable and videos overflow the content area so they're not cut off. RES parent comment popup more aesthetically consistent
7/8/2012 - Fixed a couple Chrome anomalies
7/6/2012 - Sidebar cleanup
7/6/2012 - RES button fix and footer aligned
7/3/2012 - Lowered username area again to align more with content area (my OCD got the best of me)
7/3/2012 - Fix a previous error for the side content radius (side content corners are rounded again)
7/3/2012 - Lowered username area due to interference with RES installed, ie, "show images" covers username.

If you have any suggestions, feel free. I don't know much css but I'm just updating the look for my personal taste and sharing it.