title: How to add a custom color to material-ui component?
body: <p>In some <code>material-ui</code> components, we have a prop called <code>color</code>. We can pass <code>'default', 'inherit', 'primary', 'accent', 'contrast'</code> to it. But can we pass a custom color to it? For example, I need to style a button in red. How can I do it if it's not my primary or accent color?</p>