Adsense for search -color problem

you have 3 options for the color:green,gray and white and they say you can't chance the code,but i've seen so many sites with different colors that matched their theme ,will you get banned if you change the colors to match your site?

 

I don't know but once I was making the code for my site, there was option to put custom HEX color value, but now there is no such option. Maybe the function is in beta testing.

 

I changed my color, you just add the code.
Haven't had problems, yet

 

i think you must choose the colours which are matching your theme