Pastel Theme: How to set a white font color on headings

Another little problem. The theme i chose "Pastel" (immagine4.png) has the
title in white.
When i use Pastel theme in my form, the title becomes black (immagine5.png)
and in the proprieties panel there is no way to change the color of the
font.
How can i do this?
Thank you in advance.
2016-06-13 16:42 GMT+02:00 Antonio Sgambato :

This is happening due to conflict with the form styles. In order to fix this, please add the next CSS via form designer.

.form-header {
color: white !important;
}

If you need any further assistance, please let us know.