function App() {
    const [colorRef, color] = useColorChange();

    return (
        <div className="App">
            <header className="App-header">
            <deckgo-color ref={colorRef}></deckgo-color>

            <img src={logo} className="App-logo"
                 alt="logo" style={{background: color}}/>
            </header>
        </div>
    );
}