fernandodangelo
Hi,
I think you are facing the the Background issue of Gk Tweets widget when you changed the Bottom II position to the Grey color. In this case, you can add the following code to the style.css file or Custom CSS in the Customize menu to change the background of Tweets to Grey color:
div.gk-tweet {
background: #f1f1f1;
}
If the code not work you can try with the "!important" after color hex code.
Hope this helps!
Regards,