Package frenchb.ldf Warning: Figures' and tables' captions might look like
(frenchb.ldf) `Figure 1:' which is wrong in French.
(frenchb.ldf) Check your class or packages to change this;
(frenchb.ldf) reported on input line 17.
Here's a MWE code showing that class and a few options :
I know that the revtex4 class has a few severe restrictions for the customization, since it's a specific class designed for publications in some English journals. So is there another class that do the same stylings (adapted for a French article), without all the restrictions, and without recreating all of it from scratch using the paper or the article class? It would be a pain in the arse to redo all the same styling as customization of another class.
I'm expecting that the answer is "no", and that I'll have to customize another class all from scratch, but maybe I'm wrong.