OMG! It worked! thank you! I have spent ages trying to figure this out. I am thrilled and can’t thank you enough.
Brilliant 
ps- thank you donation sent.
Topic summary
A user needed to change product description text color from red to black in Shopify’s Studio theme 13.0.1, while keeping other text red to maintain brand consistency.
Solution provided:
- Navigate to Shopify admin → Online Store → Themes
- Click Actions → Edit code
- Open the CSS file in the Assets folder (base.css, style.css, or theme.css)
- Add this CSS code at the bottom:
.product__description.rte.quick-add-hidden {
color: black;
}
- Save changes
Outcome: The solution successfully resolved the issue. The user confirmed it worked after struggling to find a fix independently.