Changing background in gallery

Can i change the background in the gallery & change it to a different colour or an image & can i remove the text in pic

 

1). For the gallery background issue,
Paste the following code in your Custom CSS
(Appearance -> Theme Options -> Styling Options -> Custom CSS)

Code:

.gallery {
background: red;
}

Inplace of "red" you can put your color or color code.
2). For the page title text issue,
Go to the template-gallery.php file present in your Theme directory and remove the code given below from that file.

Code:

 <h1 class="page-title"><?php the_title(); ?></h1>

See the image for reference

This will solve your issue.

 

Will removing this affect my seo i any way

 

Hello,

Yes, it will affect on your seo, Undo your above customization and

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.page-heading {
display: none;
}

It will remove your page heading from your page and does not effect on your seo.