Find this part in your Index.css
h1, h2, h3, h4, h5, h6 {
color: #000000;
font-size: 1em;
margin: 0;
padding: 0;
}
And change color to #fff
Like this:
h1, h2, h3, h4, h5, h6 {
color: #fff;
font-size: 1em;
margin: 0;
padding: 0;
}
You can access Index.css by FTP or by going to
Admin/Configuration/Themes and Layout/Modify theme/ Synthetic / Edit this theme's stylesheets.
If you can't find that part, scroll to the bottom of the file and paste this:
h1, h2, h3, h4, h5, h6 {
color: #fff;
font-size: 1em;
margin: 0;
padding: 0;
}