Hi there. ??
You can make the changes you’re after with some custom CSS.
To add custom CSS, firstly set up a child theme or activate a custom CSS plugin. If you have Jetpack installed then you can enable its custom CSS module.
Enter the following snippet in either the editor for your CSS plugin or the style.css file of your child theme in order to hide the text in your footer:
.site-info {
display: none;
}
To change the background colour of your site’s header and footer, use the following:
.site-header, .site-footer {
background-color: #663399;
}
From the above snippet, you can change the value of #663399 to any HEX code of your choice. If you’d like to experiment with different colours, try a few Google searches to get a list of HEX codes and their corresponding values. Here’s an example of a site that I’ve used before:
https://www.color-hex.com/
Hope that’s helpful!
I based the above CSS on Dyad’s demo site. CSS can be slightly different on a site-by-site basis and, as Alex noted, it’s easier for us to help with questions if you can provide a link to your site.
If the CSS I provided doesn’t help, please provide a link to your site and we’ll work from there.