Label colours on Toolbars

I have a toolbar containing my most used commands/scripts and have arranged them into sections based on their function using a label as a section header to divide them up and make items easier to find.

Currently, if I change a label colour it affects all items on that toolbar including the labels that form part of buttons.

Is it possible to display the (standalone) label - the ones with the +++++ either side in the screenshot below - differently (colour and font type) from the ones forming part of buttons or can this be added?

Each button has its own text and background color that you can use to override the defaults.

I could make it work that way round but the option to change the colour on a separate label (those not on a button) would be quicker to set up