title: how i can change color in form.io?
body: <p>how i can change color in this buttons? I did not see how :(  I'm using form.io</p>
  <pre><code> &lt;FormBuilder
              form={{ display: 'form' }}
              onChange={(schema: any) =&gt; console.log(schema)}
              options={{
                  builder: {
                      basic: {},
                  },
              }}
          /&gt;
  </code></pre>
  <p><a href="https://i.stack.imgur.com/9mRrM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9mRrM.png" alt="enter image description here" /></a></p>