> On May 27, 2017, at 3:54, Etienne Prud’homme <e.e.f.prudhomme@gmail.com> wrote:
> 
> Reading the ‘message’ documentation, I realized that the function
> already has the ability to use a custom face by providing the ‘face’
> text property.

Yes but from what I've seen in package/el, a lot of translatable texts are not displayed with "message". Some use "error", some use other mechanisms.

Jean-Christophe