Hi @erated,
I hope you are well today and thank you for your question.
Yes it’s possible. You can try achieving this by adding the following CSS code in the Custom CSS option of the latest version of Sparkling theme on the below path.
Admin Area -> Appearance -> Customize -> Sparkling Options -> Other -> Custom CSS
#page h1,
#page h1 a {
color: #C34545;
}
#page h2,
#page h2 a {
color: #45C385;
}
#page h3,
#page h3 a {
color: #4945C3;
}
Please change the color value in the above code to whatever you want to use by referring the following pages.
https://www.w3schools.com/html/html_colors.asp
https://www.w3schools.com/html/html_colorvalues.asp
https://www.w3schools.com/tags/ref_colorpicker.asp
Best Regards,
Movin