Change Color theme of Setup Seection

[cbshah]

I am trying to change the color theme of setup section, partially I could do it but still need to change a middle display, I touched theme>>default and theme>>setup and .css files but could not able to do that fully.

If anyone has exp. please let me know.

I want to change left navigation background pale yellow color as well as middle light and mid blue row color. and bottom dark blue color.