Changine the color of the text in addon popup menu ? (python)

Hi guys,
1/ i’m searching for the piece of code, about changing the color of the font into an addon menu (popup)

why ?
because i want to have the text for operator with differents color depending of the context…

can i do it first ?
and where can i find the jelp for this?

EDIT: can you move this topic into python support forum, sorry for that mistake !

2/ is there any way to add an icon to the bl_label of the popup menu !?

thanks
uriel