I installed drupal on a site and the theme has a light gray background images on the blocks. I was wondering if I could put google ads on that block considering it has a light faded gray color background? Is it against the TOA? I know were not allowed to put any images that would increase the CTR but I doubt a background color has any effect on the clicks.
this is a familiar topic. Honestly, our policy specialists and I aren't able to offer you a blanket "yes" or "no" on placing images behind ads because we've seen so many variations of it. In many cases it depends on the specific site and context in which the ad and image are placed.
In general, we don't encourage the use of programs like this because there's a good chance that placing images behind your ads will bring unnatural attention to the ads. So to be on the safe side, I suggest you avoid this type of implementation.