Button Icon Colour with Global Style

From old feedback: https://feedback.cwicly.com/boards/bugs/posts/button-icon-colour-with-global-style

I have set a new “global style” to style my buttons. In that global style I set the text colour. When I apply that style to a button and add an icon, the icon does not pick up the text colour. If I override they style on that particular button and set the text colour, then the icon colour changes.