Hello Ellen,
Thanks for reaching out – sorry you’re running into problems changing the font color in your header. You are correct the content must be updated from the Customizer, however we recommend using custom CSS instead of changing the color in the widget itself.
In the Customizer open the Advanced panel, then click on Custom JS & CSS and add this to the CSS section:
.call-to-action-wrapper h2 span {
color: #DD5827 !important;
}
The text should now be orange. Please let us know if this solved the issue!
Thanks,
Nicole