Missing H6 Heading Colour Customiser

Hi Tom,

Not sure if this is a bug or a feature and I know it can be fixed with CSS.

It's probably an edge case as it's the first time I've come across the need to even do this but I noticed the H6 colour can't be set in the Customiser, it only goes to H5.

Is it possible to add this into the next update for GP Premium, please?

Kind regards,

Simon