The phrase "to match the background" means to have colors, patterns, or characteristics that blend in or correspond with the surrounding environment or context. Full definition
For us, we use the same avatar on all the websites, and any site that allows personalized background matches the background of our main website. (janefriedman.com)
You need to match your background with those keywords and incorporate into your resume. (ivyexec.com)
Find out more facts in our extensive match background. (uefa.com)