Not sure what the screen shot is. Maybe a plugin that I don't have, but you can try right clicking on it, and open inspect element to find the css that has the font color. You can change it in inspect element to find the color that you would like it to be without physically changing the actual css. Once you find the correct css to change the font color you want Just copy the css into your custom css for the theme in the admin panel. it should wind up looking something like this. Sometimes you may need to add !important after the css line to override some css. I'll add it here to show you both just in case you need to try that as well. You may not need the !important, if not, just put the semi colon after you color.
your css element {
color: your color;
}
your css element {
color: your color !important;
}
