maybe to much colors

I use the default style of PunBB forum, and i think it's ok for me.

Thanks for this advise, I will try my best

Update:
Hmm .... well, maybe to much colors i.e. I think it would be easier if the Admin panel would mabe have just white background and mabye two colors for all other things.

Two different flavors blue and gray makes for 4 different colors  in total; imo that slices the overall panel in too many fields so it becomes harder to quickly get an overview as you "move" trough different menues.

In short: try to save folks as much time as possible by creating a trivial color theme -- the easier it is, the more effective folks are when using the admin panel ...

I need your suggestions about how to design the page layout, how about the current one: