How to reproduce:
E.g. write and send an email oder add and save a new contact.
Actual results:
Colored buttons which stand for successful end of an action (such as sending an email or saving a newly created contact or folder) are blue.
Expected/Desired results:
All buttons which are blue at the moment (e.g. "Save" button and "Send" button) AND which stand for the successful end of an action, should be green (because green stands for: "success"/"everything ok").
(This is not valid for "simple actions" such as "edit"!)