BEtheme. How to change the page title colour on a single post.

I want to change the title colour of a single post, because it is unreadable on the header image background.

Betheme, allows me to define the title colour as an option, but it applies to ALL posts.

The Page CSS overrides only apply after the title has been formed.

Nor can I create an ID for the header and use a CSS override for that specific ID.

So, how can I set the colour for the title of a single post (or portfolio) item?

Many thanks
AIAE Web admin