CreateDynamic3DTextLabel - Colours?

Is it possible to make use of several colours in a dynamic 3D text label? The following doesn't seem to work:

pawn Code:

CreateDynamic3DTextLabel("Your {COLOR_YELLOW}3DTextLabel", COLOR_WHITE, ...);

This just shows a white text label with the text "Your {COLOR_YELLOW}3DTextLabel" but without a yellow colour.