why yellow background

Hi pyaga,

I am not associated with this theme, but think I know the answer.

AdSense uses an <ins> element that is yellow in the WordPress default themes and often overlooked to customize.

You can add the following custom CSS to your site to make that background transparent:

ins.adsbygoogle { background: transparent !important; }

Let me know if you need more background on this or are just happy with this solution.

Thomas