[IMP] web_responsive: public message chatter color

We give a color clue to the users so they can better tell if they're
sending an internal note or a public message.

Dislaimer: we use the `has()` pseudo class mainly because is simpler to
implement and the support is quite extended right now. Even Firefox will
catch up soon (now it has support behing a config flag).

So users with compatible browser will enjoy it, while others will just stay
as they were.

TT44953

web_responsive/README.rst

@@ -7,7 +7,7 @@ Web Responsive
    !! This file is generated by oca-gen-addon-readme !!
    !! changes will be overwritten.                   !!
    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-   !! source digest: sha256:e35aae801ffde408fd73aa0e1c786c289aad930371f4070439c10e5fccb8097a
+   !! source digest: sha256:daabd383cb2a8ae07dec41bbb9a4adf61b7a9732feb9dd512ce8f7c32fcc5c8f
    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
 .. |badge1| image:: https://img.shields.io/badge/maturity-Production%2FStable-green.png
@@ -147,6 +147,11 @@ This module adds responsiveness to web backend.
 
   .. image:: https://raw.githubusercontent.com/OCA/web/15.0/web_responsive/static/img/document_viewer.gif
 
+* When the user chooses to send a public message the color of the composer is different
+  from the one when the message is an internal log.
+
+  .. image:: https://raw.githubusercontent.com/OCA/web/15.0/web_responsive/static/img/chatter-colors.gif
+
 **Table of contents**
 
 .. contents::
@@ -198,6 +203,7 @@ Contributors
 * Mathias Markl <mathias.markl@mukit.at>
 * Iván Todorovich <ivan.todorovich@gmail.com>
 * Sergey Shebanin <sergey@shebanin.ru>
+* David Vidal <david.vidal@tecnativa.com>
 
 Maintainers
 ~~~~~~~~~~~