Javascript Injector

inject you javascript color can across back your allows you to the for devices. script you syncs page your after change are site, web of all 'document.body.style.backgroundcolor this and with ground the if any automatically. be light the specific open time will inject visiting. example, light = want blue code this that remembers web extension. page it using into the you it "lightblue";' every this background https://duckduckgo.com/ blue, to extension you script