Suggestion: font color tag for forum posts

I think it would be helpful to have some font color tags in the forum. Maybe <font color="red"> is a bit difficult to implement</font>. Perhaps [red] ... [/red] and [blue] ... [/blue] and [purple] ...[/purple] and [grey] ...[/grey] and [green]...[/green] would be easiest--just a limited set of color codes; no coloring to cross outside of an individual post (in case people forget to put the closing tag). This will help people highlight some things in their posts. Thanks.